Allied Telesis 86222-25 Instruction Manual

Simply connecting the world
Patch Release Note
Patch 86222-25
For Rapier Switches and AR800 Series
Modular Switching Routers
Introduction
This patch release note lists the issues addressed and enhancements made in
patch 86222-25 for Software Release 2.2.2 on existing models of Rapier L3
managed switches and AR800 Series L3 modular switching routers. Patch file
details are listed in Table 1.
This release note should be read in conjunction with the following documents:
■Release Note: Software Release 2.2.2 for Rapier Switches, AR300 and
AR700 Series Routers, and AR800 Series Modular Switching Routers
(Document Number C613-10313-00 Rev A) available from
www.alliedtelesyn.co.nz/documentation/documentation.html.
■Rapier Switch Documentation Set for Software Release 2.2.1 available on
the Documentation and Tools CD-ROM packaged with your switch, or
from www.alliedtelesyn.co.nz/documentation/documentation.html.
■AR800 Series Modular Switching Router Documentation Set for Software
Release 2.2.1 available on the Documentation and Tools CD-ROM
packaged with your switching router, or from www.alliedtelesyn.co.nz/
documentation/documentation.html.
WARNING: Using a patch for a different model or software release may cause
unpredictable results, including disruption to the network. Information in this
release note is subject to change without notice and does not represent a
commitment on the part of Allied Telesyn International. While every effort has
been made to ensure that the information contained within this document and
the features and changes described are accurate, Allied Telesyn International
can not accept any type of liability for errors in, or omissions arising from the
use of this information.
Table 1: Patch file details for Patch 86222-25.
Base Software Release File 86s-222.rez
Patch Release Date 15-April-2003
Compressed Patch File Name 86222-25.paz
Compressed Patch File Size 443760 bytes

2Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
Some of the issues addressed in this patch include a Level number. This
number reflects the importance of the issue that has been resolved. For details
on level numbers, please contact your authorised distributor or reseller.
Features in 86222-25
Patch 86222-25 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
If the command ADD FIREWALL POLICY RULE SOURCEPORT=ALL was
executed, a value of “65535” was incorrectly displayed for the
SOURCEPORT parameter for that rule in the SHOW FIREWALL POLICY
command. This issue has been resolved.
If a problem occurred with NVS, some critical files were lost. As a result, the
equipment was forced to load only boot ROM software at boot time. This
patch combined with the new version of the boot ROM software (pr1-1.2.0
for the AR700 series) resolves this issue.
The GBLIP parameter in the ADD FIREWALL POLICY RULE
ACTION=NONAT command is optional. However, if the command was
executed without the GBLIP parameter set, the command erroneously
failed after a CREATE CONFIGURATION command was executed. This
issue has been resolved.
TCP sessions could fail if the public side of the firewall was using Kerberos
and the private side had a very slow connection to the firewall. This issue
has been resolved.
When using the SET TELNET LISTENPORT command, a fatal error
sometimes occurred. This issue has been resolved.
The TYPE parameter in the SET SWITCH L3FILTER command was not
written to the script file correctly if MATCH was set to NONE. This issue
has been resolved.
When the PRIORITY parameter in the SET VRRP command was changed,
it was not set correctly when a link was reset. This issue has been resolved.
The SET IP ROUTE FILTER command was not processing some parameters.
This issue has been resolved.
PCR: 02300 Module: Firewall Network affecting: No
PCR: 02400 Module:
CORE,FFS,FILE,INSTALL,SCR
Network affecting: No
PCR: 02530 Module: FIREWALL Network affecting: No
PCR: 03111 Module: FIREWALL Level: 1
PCR: 03134 Module: TCP Level: 2
PCR: 03135 Module: SWI Level: 2
PCR: 03143 Module: VRRP Level:
PCR: 03145 Module: IPG Level: 4

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 3
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
If the Gratuitous ARP feature was enabled on an IP interface, and an ARP
packet arrived, (either ARP request, or reply) that had a Target IP address
that was equal to the SenderIP address, then the ARP cache was not
updated with the ARP packet’s source data. This issue has been resolved.
Executing the PURGE STP command caused fatal error. This issue has been
resolved.
DVMRP was erroneously forwarding packets to a VLAN with a
downstream neighbour. This issue has been resolved.
The default NTP polling interval was set to 64 seconds, not the correct
interval of 128 seconds. This issue has been resolved.
This PCR corrects issues that arose with PCR 02203. When the DNS request
forwarding queue failed to accept a new DNS request message (possibly
due to overloading), an attempt was made to close the UDP sessions for
both the primary and secondary name servers. This caused a restart if either
one of these servers did not exist, or the UDP session had failed to open.
This issue has been resolved.
If all 32 VLAN interfaces had IP addresses attached, only 31 VLANs could
be multihomed. Now all 32 VLAN interfaces with IP addresses can be
multihomed.
There are two sources of time kept in the device. The real time clock, and the
milliseconds since midnight (msSinceMidnight). The msSinceMidnight can
reach midnight slightly before the real time clock which means that the
value of the msSince Midnight is larger than the number of milliseconds in
a day. This meant that at midnight, the elapsed time since the time-to-live
value for the Firewall and IP-NAT TCP sessions appeared very large and
Firewall and IP-NAT sessions were prematurely aged out. This issue has
been resolved by pausing the msSince Midnight variable at midnight to
wait for the real time clock to catch up.
If a DVMRP interface was deleted and then added again, DVMRP routes
associated with this interface were not reactivated. This issue has been
resolved.
Some issues with DVMRP forwarding have been resolved.
IGMP queries were being sent after IGMP was disabled. This issue has been
resolved.
PCR: 03148 Module: IPG Level: 3
PCR: 03160 Module: STP Level: 2
PCR: 03171 Module: DVMRP, IPG Level: 3
PCR: 03173 Module: CORE, NTP Level: 3
PCR: 03174 Module: IPG Level: 2
PCR: 03180 Module: IPG Level: 3
PCR: 03202 Module: CORE Level: 3
PCR: 03217 Module: DVMRP Level: 2
PCR: 03218 Module: DVMRP Level: 2
PCR: 03236 Module: IPG Level: 3

4Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
A fatal error occurred when OSPF was under high load. This issue has been
resolved.
Inbound TCP sessions through the firewall (e.g. Telnet and FTP) failed when
the PORT parameter was set to ALL in the SET FIREWALL POLICY RULE
command. This issue has been resolved.
The firewall doubled the IPSPOOF event timeout from 2 minutes to 4
minutes. This issue has been resolved.
Following a period of high traffic load, the CPU utilisation would
occasionally fail to drop below 40%. This issue has been resolved.
Layer 3 filters that matched TCP or UDP port numbers were being applied
to the second and subsequent fragments of large fragmented packets. This
issue has been resolved.
A log message is now created when a user is forced to logout from an
asynchronous port when another user (i.e. someone connected via Telnet)
resets the asynchronous connection with the RESET ASYN command.
Sometimes the Agent Address field in SNMP traps was not the same as the
IP source address. This meant that sometimes the NMS did not send an
alarm to the network manager when traps were received from switches.
This issue has been resolved.
Layer 2 packets transmitted out of the mirror port were being tagged
erroneously. This issue has been resolved.
DHCP sometimes suffered a fatal error when a range of IP addresses was
destroyed. This issue has been resolved.
Critical files (prefer.ins, config.ins and enabled.sec) are now copied from NVS
to FLASH at boot time if they do not exist in FLASH, or if the NVS version
of the file is different from the FLASH version.
If the SET SWITCH L3FILTER MATCH command had nothing specified for
the IMPORT and EMPORT parameters, and there was an existing match
entry in the filter table, the new filter was not added correctly. Filter match
entries are now accepted regardless of the order in which they are entered
into the table.
PCR: 03240 Module: OSPF Level: 2
PCR: 03253 Module: FIREWALL Level: 2
PCR: 03255 Module: FIREWALL Level: 3
PCR: 03302 Module: SWI Level: 3
PCR: 03314 Module: SWI Level: 2
PCR: 03332 Module: TTY Level: 2
PCR: 03346 Module: SNMP Level: 4
PCR: 03368 Module: SWI Level: 2
PCR: 03378 Module: DHCP Level: 2
PCR: 03385 Module: FILE, INSTALL, SCR Level:
PCR: 03386 Module: SWI Level: 2

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 5
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
The DHCP lease Expiry time showed incorrectly in the SHOW DHCP
CLIENT command when the lease straddled across multiple months and
years. This issue has been resolved.
IP routes deleted from the route cache occasionally caused a fatal error. This
issue has been resolved.
Features in 86222-24
Patch file details are listed in Table 2:
Patch 86222-23 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
When a NTP packet was received from an NTP server (mode 4) the router
acted as a client, and sent a reply back to the server, but did not remove the
peer association. This meant that the Dynamic Peers list, viewed using the
SHOW NTP command, displayed incorrect dynamic peer associations. This
issue has been resolved.
Previously, when Firewall or IP NAT was enabled, any fragmented IP
packets had to be reassembled so they could be processed. If the fragments
could not be reassembled, the packet was dropped. Reassembly could only
occur if the combined packet (IP header, and protocol header, and data) was
no more than 1800 bytes. An additional limit of no more than eight
fragments was also imposed. This PCR implements enhanced fragment
handling for Firewall and IP NAT. Each module can now be configured to
process fragmented packets of specified protocol types without needing to
reassemble the packet. The number of fragments a packet may consist of is
also configurable. This enhanced fragment handling is disabled by default.
To enable enhanced fragmentation for Firewall, use the command:
ENABLE FIREWALL POLICY=policy_name
FRAGMENT={ICMP|UDP|OTHER}
To enable enhanced fragmentation for IP NAT, use the command:
ENABLE IP NAT FRAGMENT={ICMP|UDP|OTHER}
To disable enhanced fragmentation for Firewall, use the command:
DISABLE FIREWALL POLICY=policy_name
FRAGMENT={ICMP|UDP|OTHER}
PCR: 03388 Module: DHCP Level: 3
PCR: 03402 Module: IPG Level:
Table 2: Patch file details for Patch 86222-24.
Base Software Release File 86s-222.rez
Patch Release Date 6-Mar-2003
Compressed Patch File Name 86222-24.paz
Compressed Patch File Size 433360 bytes
PCR: 02071 Module: NTP Network affecting: No
PCR: 02202 Module: FIREWALL/IP NAT Network affecting: No

6Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
To disable enhanced fragmentation for IP NAT, use the command
DISABLE IP NAT FRAGMENT={ICMP|UDP|OTHER}
To configure the number of fragments permitted per packet for Firewall, use
the command:
SET FIREWALL FRAGMENT=8...50
To configure the number of fragments permitted per packet for IP NAT, use
the command:
SET IP NAT FRAGMENT=8...50
TCP has been excluded from this enhancement because TCP has the MSS
(Maximum Segment Size) parameter for segment size control. Also, for
PPPoE interfaces with a reduced MTU of 1492, a previous enhancement in
PCR 02097 ensures that TCP MSS values in sessions carried by a PPPoE
interface are clamped to a value that prevents fragmentation.
When pinging to a remote IP address with two or more different cost routes,
if the preferred route became unavailable, the ping failed to switch to the
less preferred route until the ping was stopped and restarted. This issue has
been resolved.
When the system time was set to a time that was before or significantly after
the current time, Firewall sessions were prematurely deleted. This issue has
been resolved.
When the router priority was changed on a dynamic OSPF interface, the
new priority did not appear in the output of the SHOW OSPF NEIGHBOUR
command on neighbouring routers. The new priority only showed after the
RESET OSPF command was executed on the neighbouring routers. This
issue has been resolved.
After setting the IGMP query timer with the SET IP IGMP command, and
saving the configuration, the IGMP Other Querier timeout was not set to the
correct value after a restart. This issue has been resolved.
Entries in the process of being reclaimed as static entries (and waiting for
the remote IP to become routable), were disrupting the reclaim process. This
prevented further entries from being reclaimed. DHCP static entries are
now fully subject to normal reclaim processing.
If the ENABLE IP IGMP command was executed before the ENABLE
SWITCH L3FILTER command, Layer 3 filtering did not discard packets
destined for the CPU. This issue has been resolved.
Link state advertisements could incorrectly show an area as a stub area. This
happened during the time when a Direct Route (DR) was removed from a
configuration and before a Direct Backup Route (BDR), or an Other Direct
Route (Other DR) was elected. This issue has been resolved.
PCR 02116 Module: IPG PING Network affecting: No
PCR: 02371 Module: FIREWALL Network affecting: No
PCR: 03011 Module: OSPF Network affecting: No
PCR: 03026 Module: IPG Network affecting: No
PCR: 03027 Module: DHCP Network affecting: No
PCR: 03032 Module: SWI Network affecting: No
PCR: 03035 Module: OSPF Network affecting: No

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 7
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
Sometimes IP flows were not deleted correctly when both directions of the
flow were in use. This issue has been resolved.
When the TX cable was unplugged from a fibre port the operating status
was incorrectly reported as UP. This issue has been resolved.
When replying to a DHCP REQUEST that had passed through a DHCP
relay, the broadcast bit of DHCP NAK messages was not being set. This
issue has been resolved in accordance with RFC2131.
DVMRP was not updating the downstream forwarding state correctly. This
issue has been resolved.
DHCP policies are no longer stored in alphabetical order in the DYNAMIC
CONFIGURATION script because this did not work when the DHCP
INHERIT parameter was used.
When a static ARP was added to a trunk group, a software restart could
occur. This issue has been resolved.
Features in 86222-23
Patch file details are listed in Table 3.
Patch 86222-23 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
Locally generated ICMP packets, such as unreachable messages, were not
passed out through public interfaces when the packet that caused the
message was not recorded by the firewall. This may occur, for example, if
the packet passed between two public interfaces. This issue has been
resolved.
The ARP cache is now updated when a gratuitous ARP request or reply
packet is received.
PCR: 03040 Module: IPG Network affecting: No
PCR: 03065 Module: SWI Level: 2
PCR: 03067 Module: DHCP Level: 1
PCR: 03080 Module: DVMRP
PCR: 03095 Module: DHCP Level: 2
PCR: 03122 Module: SWI Level: 2
Table 3: Patch file details for Patch 86222-23.
Base Software Release File 86s-222.rez
Patch Release Date 16-Jan-2003
Compressed Patch File Name 86222-23.paz
Compressed Patch File Size 947772 bytes
PCR: 02166 Module: FIREWALL Network affecting: No
PCR: 02491 Module: IPG Network affecting: No

8Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
Some change actions, and the resending of prune messages were not
operating correctly. This issue has been resolved.
Reverses PCR 02400.
When OSPF was enabled on startup, an OSPF interface would sometimes
stay in the DOWN state. This issue has been resolved.
Logging out from a Telnet session caused the switch to restart. This issue
has been resolved.
Features in 86222-22
Patch file details are listed in Table 4.
The firewall was blocking outbound ICMP packets when the associated
private interface had a ‘deny all’ rule. The passing of ICMP packets should
be controlled by the ICMP_FORWARDING and PING parameters. This
issue has been resolved.
This patch supersedes PCRs 02073, 02081, 02086 and 02105. In addition to
enhancements in the preceding PCRs, this PCR now also resolves the
following issues:
• If a compaction was started within 60ms of a file write commencing, the
file being written was placed in the wrong location in the file system.
This led to file corruption during subsequent compactions.
• If a file load occurred during compaction, an incomplete copy of the file
was loaded. The load also put the file into the wrong part of the file
system once the compaction had moved beyond the part of the file that
had been loaded.
• A fatal error occurred during compaction if a file was marked as deleted
when it was being transferred.
PCR: 02574 Module: DVMRP Network affecting: No
PCR: 02586 Module: CORE, FFS, FILE,
INSTALL, SCR
Network affecting: No
PCR: 02587 Module: OSPF Network affecting: No
PCR: 03012 Module: TTY Network affecting: No
Table 4: Patch file details for Patch 86222-22.
Base Software Release File 86s-222.rez
Patch Release Date 12-Dec-2002
Compressed Patch File Name 86222-22.paz
Compressed Patch File Size 957598 bytes
PCR 02136 Module: FIREWALL Network affecting: No
PCR 02184 Module: FFS FILE TTY Network affecting: No

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 9
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
• Sometimes during compaction when the file system was erasing blocks
belonging to deleted files, one of the files was transferred rather than
deleted. However, its directory entry was deleted, so the file was not
visible with a SHOW FILE command but was visible with a SHOW
FFILE command.
• During compaction if the amount of free space was less than two erase
blocks (including the "spare" erase block), the file system erroneously
reported that a large amount of space was available for a new file due
to an underflow problem. When a new file was written it would corrupt
existing data.
• If the file system was completely full and the deletion of a single file led
to a compaction, the file system reported that it was continually
compacting. This was because it was repeatedly searching through a
linked list of file headers.
• A byte of data from FLASH was incorrectly returning the value 0xFF.
• When a file was renamed using upper case letters, the renamed file did
not appear in the file directory but did appear in FLASH. Also, if a
SHOW FFILE CHECK command was executed after renaming the file,
the file system would appear to hang. All file names must now be lower
case.
• Multiple TTY sessions could edit the same file. This caused
unpredictable behaviour when the TTY sessions closed the files.
A new command, SHOW FFILE VERIFY, has been added. This command
steps through the file system headers starting with file zero and finishing at
the end of the last reachable file. It then verifies that all FLASH locations
from the end of the last reachable file to the beginning of file zero are in an
erased state. Errors are reported as they are found.
The source IP address in DVMRP prune and graft messages was incorrect.
This issue has been resolved.
Firewall subnet NAT rules were not working correctly from the private to
the public side of the firewall. Traffic from the public to private side
(destined for subnet NAT) was discarded. These issues have been resolved.
ICMP traffic no longer causes a RADIUS lookup for access authentication,
but is now checked by ICMP handlers for attacks and eligibility. If the ICMP
traffic matches a NAT rule, NAT will occur on inbound and outbound
traffic. HTTP 1.0 requests sometimes caused the firewall HTTP proxy to
close prematurely. Cached TCP sessions were sometimes not hit correctly.
These issues have been resolved.
When an IP Multihomed interface was used as an OSPF interface,
neighbour relationships were only established if the IP interface for OSPF
was added first in the configuration. Now, OSPF establishes neighbour
relationships regardless of the IP Multihomed interface configuration order.
The SHOW VRRP command now shows the number of trigger activations
for the Upmaster and Downmaster triggers.
PCR 02192 Module: IP Network affecting: No
PCR: 02241 Module: FIREWALL Network affecting: No
PCR: 02359 Module: IPG Network affecting: No
PCR: 02395 Module: VRRP, TRG Network affecting: No

10 Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
DHCP RENEW request messages are now unicast (as defined in the RFC),
not broadcast.
If a problem occurred with NVS, some critical files were lost. As a result, the
equipment was forced to load only boot ROM software at boot time. This
patch combined with the new version of the boot ROM software (pr1-1.2.0
for the AR700 series) resolves this issue.
The EPORT parameter in the SHOW SWITCH L3FILTER ENTRY command
was displaying incorrectly after an issue was resolved in PCR02374. The
command now displays correctly.
DHCP entry reclaim checks are now delayed by 10 seconds if the entry is
unroutable because the interface is not up.
Support for multi-homed interfaces has been added.
Under some circumstances a fatal error occurred if a large amount of data
was pasted onto the command line. This issue has been resolved.
When the switch was under heavy learning load, some MAC address were
lost. This issue has been resolved.
In the ADD IP ROUTE FILTER command, when the optional parameter
INTERFACE was included, the filter was not applied to the flooding of
OSPF external LSAs. Also, in the command SHOW IP ROUTE FILTER, the
output of the interface name was truncated when the name was more than
six characters long. These issues have been resolved.
The source net mask has been removed from DVMRP prune, graft and
graft-ack messages.
Under some circumstances, multiple default routes were created for
DVMRP. This issue has been resolved.
The source mask is now always 0xffffffff in the DVMRP forwarding table.
The temporary route in the DVMRP route table was not displaying
correctly. This issue has been resolved.
An IGMP entry was erroneously added for the reserved IP address. This
issue has been resolved.
PCR: 02396 Module: DHCP Network affecting: No
PCR 02400 Module: CORE, FFS, FILE,
INSTALL, SCR
Network affecting: No
PCR 02408 Module: SWI Network affecting: No
PCR: 02427 Module: DHCP Network affecting: No
PCR: 02463 Module: DVMRP, IPG Network affecting: No
PCR 02465 Module: TTY Network affecting: No
PCR: 02489 Module: SWI Network affecting: No
PCR 02506 Module: OSPF, IPG Network affecting: No
PCR: 02509 Module: DVMRP Network affecting: No
PCR 02526 Module: DVMRP Network affecting: No
PCR 02538 Module: DVMRP Network affecting: No

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 11
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
Features in 86222-21
Patch file details are listed in Table 5:
Patch 86222-21 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
Locally generated ICMP messages, that were passed out through a firewall
interface because they were associated with another packet flow, had their
source address changed to that of the associated packet flow and were also
forwarded with incorrect IP checksums. This only occurred when there was
no NAT associated with the packet flow. This issue has been resolved.
Sometimes the retransmission of an FTP packet was not permitted through
the Firewall. This issue has been resolved.
VRRP returned an incorrect MAC address for an ARP request. This issue
has been resolved.
In some situations, multihomed interfaces caused the Firewall to apply
NAT and rules incorrectly when packets were received from a subnet that
was not attached to the receiving interface. This issue has been resolved.
An ARP entry for a host has been removed whenever a DHCP DISCOVER
or DHCP REQUEST message is received from the host. This allows for
clients changing ports on a switch.
The sequence number extracted from the AH and ESP header was in the
wrong endian mode, which caused an FTP error with IPSEC anti-replay.
This issue has been resolved.
When acting as a PPPoE Access Concentrator (AC), if a PPPoE client sent
discovery packets without the "host-unique" tag, the discovery packets sent
by the AC were corrupted. This issue has been resolved.
Table 5: Patch file details for Patch 86222-21.
Base Software Release File 86s-222.rez
Patch Release Date 03-Oct-2002
Compressed Patch File Name 86222-21.paz
Compressed Patch File Size 408864 bytes
PCR: 02167 Module: FIREWALL Network affecting: No
PCR: 02236 Module: FIREWALL Network affecting: No
PCR: 02245 Module: VRRP Network affecting: No
PCR: 02327 Module: IPG/FIREWALL Network affecting: No
PCR: 02329 Module: DHCP Network affecting: No
PCR: 02332 Module: IPSEC Network affecting: No
PCR: 02343 Module: PPP Network affecting: No

12 Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
IGMP failed to create an automatic IGMP membership with no joining port
when it received multicast data that no ports were interested in, when IP
TimeToLive was set to 1 second. Also, IGMP erroneously sent a query on an
IGMP enabled IP interface even when IGMP was disabled. These issues
have been resolved.
In the ADD SWITCH L3FILTER command, the EPORT parameter
incorrectly accepted the value 62-63 as multicast and broadcast ports 63-64.
This issue has been resolved.
After a prune lifetime had expired, the interface was not joined back to the
DVMRP multicast delivery tree. This issue has been resolved.
DVMRP multicast forwarding failed to send tagged packets to a tagged
port. Packets were erroneously sent untagged to tagged ports. This issue
has been resolved.
Features in 86222-20
Patch file details for Patch 86222-20 are listed in Table 6:
Patch 86222-20 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
The IGMP specific query sent by the router/switch now contains the correct
default response time of 1 second. Also, ifOutOctets in the VLAN interface
MIB now increments correctly.
If a port did not belong to an ethernet interface, or was not directly
connected to the seed port it could not receive advertised router numbers.
This issue has been resolved.
When an interface went down (or was disabled) on an AS border router, the
external routes were not removed from the routing domain. Such routes are
now removed by premature aging.
PCR: 02368 Module: IPG/IGMP Network affecting: No
PCR: 02374 Module: SWI Network affecting: No
PCR: 02397 Module: DVMRP Network affecting: No
PCR: 02404 Module: IPG Network affecting: No
Table 6: Patch file details for Patch 86222-20.
Base Software Release File 86s-222.rez
Patch Release Date 23-Aug-2002
Compressed Patch File Name 86222-20.paz
Compressed Patch File Size 397708 bytes
PCR: 01226 Module: IGMP Network affecting: Yes
PCR: 01270 Module: APPLE Network affecting: No
PCR: 01285 Module: OSPF Network affecting: No

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 13
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
Proxy Arp can now be used on VLAN interfaces.
A fatal error sometimes occurred if a TCP session originating on the public
side of the firewall sent packets before the session was established with the
host on the private side of the firewall. This issue has been resolved.
Some FTP packets handled by the firewall were forwarded with incorrect
sequence numbers, causing FTP sessions to fail. This issue has been
resolved.
When passing 64-bit counters in an SNMP packet, only the lower 32 bits
were passed. Now the full 64 bits of the counter will be returned if all are
required.
When a TCP RST/ACK was received by a firewall interface, the packet that
was passed to the other side of the firewall lost the ACK flag, and had an
incorrect ACK number. This issue has been resolved.
The IP Filter SIZE parameter was not being applied correctly. This issue has
been resolved.
The SET IP FILTER command would not update the SIZE parameter
correctly. This issue has been resolved.
The TOS field in IP packets was not being processed by IP POLICY filters
with an identifier greater than 7. This issue has been resolved.
A feature has been added that makes pings pass from the source IP address
of the public interface to the IP address on the private interface in the
firewall.
If a port on a Rapier 48 or Rapier 48 i went down, some associated entries
were not promptly removed from the forwarding, Layer 3 and default IP
tables. This issue has been resolved.
This PCR includes the following enhancements:
• A new command, SET DHCP EXTENDID allows for multiple DHCP
clients, and handling of arbitrary client IDs on the server.
• Static DHCP entries now return to the correct state when timing out.
PCR: 02024 Module: IPG Network affecting: No
PCR: 02122 Module: FIREWALL Network affecting: No
PCR: 02128 Module: FIREWALL Network affecting: No
PCR: 02150 Module: CORE, SNMP Network affecting: No
PCR: 02158 Module: FIREWALL Network affecting: No
PCR 02161 Module: IPG Network affecting: No
PCR 02162 Module: IPG Network affecting: No
PCR 02172 Module: IPG Network affecting: No
PCR: 02174 Module: FIREWALL Network affecting: No
PCR: 02195 Module: SWI Network affecting: No
PCR: 02198 Module: DHCP Network affecting: Yes

14 Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
• DHCP entry hashes now have memory protection to prevent fatal
errors.
• DHCP client now retransmits XID correctly.
• Lost OFFER messages on the server are now handled correctly.
• The DHCP server now correctly handles DHCP clients being moved to
a different interface on the DHCP server after they’ve been allocated an
IP address.
Responses to DNS requests received by a DNS relay agent, and forwarded
to the DNS server, were returned to the requester with a source IP address
of the DNS server rather than the DNS relay agent. This issue has been
resolved.
Log messages are no longer stored in NVS.
A buffer leak occurred when a large number of flows (over 4000) were in use
and needed to be recycled. This issue has been resolved.
When the only feature licence in the feature licence file was disabled, the
licence file stored on FLASH memory did not change. This was due to a
previous enhancement in PCR 02184 which prevented existing files being
deleted before a new version was stored. This issue has been resolved.
The EPORT parameter in the ADD SWITCH L3FILTER ENTRY and SET
SWITCH L3FILTER ENTRY commands was matching multicast and
broadcast packets with software filtering. This issue has been resolved.
Some switch chip register values have been changed to improve QoS
support on Rapier G6 and Rapier G6f switches.
The PURGE IP command now resets the IP route cache counters to zero.
On a Rapier 24, adding an IP interface over a FR interface caused an
ASSERT debug fatal error. This issue has been resolved.
The ARL entry for the virtual router MAC was incorrectly showing a
numerical value. The entry now shows the CPU’s port value.
Sometimes the Firewall erroneously used NAT. This issue has been
resolved.
PCR: 02203 Module: IPG Network affecting: No
PCR: 02208 Module: LOG Network affecting: No
PCR: 02214 Module: IPG Network affecting: No
PCR: 02215 Module: FILE Network affecting: No
PCR: 02220 Module: SWI Network affecting: No
PCR: 02224 Module: SWI Network affecting: No
PCR: 02229 Module: IPG Network affecting: No
PCR: 02242 Module: IPG Network affecting: No
PCR: 02246 Module: VRRP Network affecting: No
PCR: 02250 Module: FIREWALL Network affecting: No

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 15
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
A dual Ethernet router was incorrectly accepting an IP address from a
DHCP server when the offered address was on the same network as the
other Ethernet interface. An error is now recorded when DHCP offers an
address that is in the same subnet as another interface.
When a ‘\n’(LF) character was received, the router/switch did not
recognise this as the termination of a command over Telnet. This issue has
been resolved.
Responses to MX record requests were not handled correctly if the preferred
name in the MX record differed from the one that was requested. This issue
has been resolved.
The virtual MAC address was used as the source MAC for all packets
forwarded on an interface associated with a Virtual Router (VR). This was
confusing when multiple VRs were defined over the same interface because
only one virtual MAC address was ever used. The other virtual MAC
addresses (for the other VR's) were only used if the source IP address
matched the VR’s IP address. To avoid this confusion, the system MAC
address is now always used unless the source IP address of the packet is the
same as the VR’s IP address.
PIM or DVMRP failed to see any data if IGMP snooping was on and
DVMRP or PIM was enabled after the data stream had reached the router/
switch. This issue has been resolved.
MAC address lists were not working with Firewall rules. This issue has
been resolved.
HTTP requests from a fixed IP address were erroneously reported as a host
scan attack in the Firewall deny queue. This issue has been resolved.
Under certain circumstances, the Asyn Loopback Test failed. This issue has
been resolved.
ARL message interrupts have been re-enabled after a software table rebuild
to fix synchronisation of the software forwarding database with the
hardware table.
Some routes were not added into the OSPF route list, and therefore were not
added into the IP route table. This issue has been resolved.
PCR: 02259 Module: DHCP, IPG Network affecting: No
PCR: 02260 Module: TTY Network affecting: No
PCR: 02262 Module: DNS Network affecting: No
PCR: 02263 Module: VRRP Network affecting: No
PCR: 02264 Module: PIM, DVMRP, SWI Network affecting: No
PCR: 02265 Module: FIREWALL Network affecting: No
PCR: 02268 Module: FIREWALL Network affecting: No
PCR: 02269 Module: DUART, TM Network affecting: No
PCR: 02274 Module: TPAD Network affecting: No
PCR: 02275 Module: OSPF Network affecting: No

16 Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
The CREATE CONFIG command did not save the SOURCEPORT
parameter to the configuration file when the low value of the source port
range was set to zero. This issue has been resolved.
Existing IGMP groups were not deleted when IGMP was disabled globally
or on the associated interface. This gave the groups very high timeout
values. This issue has been resolved.
If a packet with a destination IP address equal to a VRRP IP address was
received when the router didn’t own the IP address, (because it didn’t have
an interface with that IP address) the router incorrectly tried to forward the
packet and send an ICMP “redirect” message to the source. Now, if such a
packet is received, it will be discarded and an ICMP “host unreachable”
message will be sent to the source.
VRRP used the wrong source IP address in ICMP redirects. RFC 2338 states
that the source IP address of ICMP redirects should be the IP address that
the end host used when making its next hop routing decision. In the case of
a packet sent to a VRRP virtual MAC address, this is the primary VRRP IP
address associated with the MAC address, provided such a VR exists and is
in the master state. This issue has been resolved.
The SIZE functionality on the IP filter was not working for IP fragmented
packets. This issue has been resolved.
Features in 86222-19
Patch file details for Patch 86222-19 are listed in Table 7:
Patch 86222-19 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
When OSPF was calculating routes from an AS external LSA and the AS
external router had two next hops with different metrics, the router
erroneously added two routes instead of one route with the best metric. This
issue has been resolved. Also, when the two equal cost routes were on the
same IP interface, but to different next hops, the router sent the packets to
the wrong MAC address. This issue has been resolved.
PCR: 02276 Module: FIREWALL Network affecting: No
PCR: 02287 Module: IPG Network affecting: No
PCR: 02299 Module: VRRP Network affecting: No
PCR: 02304 Module: VRRP Network affecting: No
PCR: 02317 Module: IPG Network affecting: No
Table 7: Patch file details for Patch 86222-19.
Base Software Release File 86s-222.rez
Patch Release Date 11-Jun-2002
Compressed Patch File Name 86222-19.paz
Compressed Patch File Size 364584 bytes
PCR: 02018 Module: OSPF Network affecting: No

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 17
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
STP always transmits untagged packets. If a port does not belong to a
VLAN as an untagged port, then the port must belong to one VLAN as a
tagged port. In this case, STP should transmit VLAN tagged packets out of
the port.
The IP, MASK, and ACTION parameters could not be set with the SET IP
ROUTE FILTER command. This issue is resolved when the filter number is
specified at the start of the command, for example:
SET IP ROUTE FILTER=filter-id IP=ipadd MASK=ipadd
ACTION={INCLUDE|EXCLUDE}
where: filter-id is the filter number. Filter numbers are displayed in the
output of the SHOW IP ROUTE FILTER command.
The built in Self Test Code for all Rapiers, except G6, has been improved to
enhance the detection of faults in switch chip external packet memory.
An AS boundary router advertises AS external LSAs to other routers.
However, when the router’s configuration changed, either by adding an IP
route filter, or by setting its ASEXTERNAL parameter to OFF using the SET
OSPF ASEXTERNAL command followed by a restart, its neighbour state
could not reach full state. Also, when the router had IP route filters
configured, matched routes were not being flooded into other routers.
However, these routes should still have been imported into the router’s
own LSA database, but were not. These issues have been resolved.
The IPG module has been enhanced to support gratiutous ARP request and
ARP reply packets.
The Rapier was not detecting invalid checksums in ICMP echo request
packets. This issue has been resolved. ICMP echo request packets with
invalid checksums are now dropped and the ICMP inErrors and inDiscards
counters are incremented.
A simple DHCP range MIB and a trap have been added. The trap is
triggered when a DHCP request cannot be satisfied. The gateway address
and the interface address are sent as trap variables. The range table shows
which range was exhausted. A debug variable,
swiDebugBroadcomParityErrors has been added to the SWI module MIB to
count the SDRAM parity errors in the packet memory of the Broadcom
switch chip.
Packets traversing in and out of the same public firewall interface were
sometimes blocked. The firewall should only control packets passing
between a public and a private interface. This issue has been resolved.
PCR: 02098 Module: STP Network affecting: No
PCR: 02123 Module: IPG Network affecting: No
PCR 02138 Module: SWI Network affecting: No
PCR 02140 Module: OSPF Network affecting: No
PCR 02144 Module: IPG Network affecting:No
PCR 02151 Module: IPG Network affecting: No
PCR 02164 Module: DHCP Network affecting: No
PCR 02176 Module: FIREWALL Network affecting: No

18 Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
When a file upload was interrupted, the file being uploaded was not
unlocked. The file could not be deleted without restarting the router. This
issue has been resolved.
RIP was incorrectly sending triggered request packets over VLANs, even on
non-demand links. This issue has been resolved.
When VRRP responded to an ARP request for the VR IP address it was not
making an entry in the ARP table and the switch L3 table. This issue has
been resolved.
Features in 86222-18
Patch file details for Patch 86222-18 are listed in Table 8:
There is no patch release 86222-17 because this patch was withdrawn.
Patch 86222-18 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
In some situations, the switch would stop forwarding packets via internal
and/or external uplink ports. This issue has been resolved.
If a flash write error occurred when a file was being written, the file’s
directory entry was deleted leaving a partial file in flash. Subsequent
attempts to write the file failed because a file of the same name already
existed. This issue has been resolved.
In configurations containing a large number of OSPF routes, the SPF
calculation could take a long time. During this calculation, other events
would not be processed. This patch reduces the time required for an SPF
calculation and allows the switch to respond to other events in the mean
time. This patch also improves the performance of flow cache updates.
PCR 02181 Module: LOAD Network affecting: No
PCR 02186 Module: IPG Network affecting: No
PCR 02188 Module: VRRP Network affecting: No
Table 8: Patch file details for Patch 86222-18.
Base Software Release File 86s-222.rez
Patch Release Date 6-May-2002
Compressed Patch File Name 86222-18.paz
Compressed Patch File Size 342720 bytes
PCR: 02041 Module: SWI Network affecting: No
PCR: 02073 Module: FILE Network affecting: No
PCR: 02075 Module: OSPF, IPG Network affecting: No

Patch 86222-25 For Rapier Switches and AR800 Series Modular Switching Routers 19
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
If the FILE module was required to re-write a file, the existing file would be
deleted before the size of the new file was known. This issue has been
resolved.
OSPF virtual links running across a single network segment would accept
0.0.0.0 as the next hop address. This was inherited by derivative routes,
making them unusable. This issue has been resolved.
If a file ended short of an erase block boundary and a compaction was
started, the block in which the file was stored was not erased, causing errors
when new files were written. Also, if the last file in the filing system ended
on or short of an erase block boundary, and a compaction was started, then
compaction would fail. These issues have been resolved.
Port mirroring on the Rapier 48 and 48i was not operating correctly because
Destination Lookup Failure (DLF) frames were sent from the mirror port.
This issue has been resolved.
The software routing performance of the Rapier 48 and Rapier 48i has been
enhanced.
The layer 3 hardware table was not sorted properly when it contained a
very wide range of IP addresses (eg. 10.0.0.1 - 205.33.3.1). This caused a
small number of packets to be routed by software rather than hardware.
This issue has been resolved.
The periodic and time trigger counts were incrementing by two instead of
one on each update. This issue has been resolved.
An error occurred when the FLASH write driver was required to write
values that were not long-word aligned and were at the driver’s page
boundary. The driver attempted to write into the next section of memory. It
also attempted to read the status of this section of memory, and
misinterpreted the result as a low Vpp voltage. Also, errors occurred during
FLASH compaction. These issues have been resolved.
PCR: 02081 Module: FILE, FFS Network affecting: No
PCR: 02082 Module: OSPF Network affecting: Yes
PCR: 02086 Module: FFS Network affecting: No
PCR: 02088 Module: SWI Network affecting: No
PCR: 02095 Module: SWI Network affecting: No
PCR: 02101 Module: SWI Network affecting: No
PCR: 02104 Module: TRG Network affecting: No
PCR: 02105 Module: FFS Network affecting: No

20 Patch Release Note
Patch 86222-25 for Software Release 2.2.2
C613-10319-00 REV X
Features in 86222-16
Patch file details for Patch 86222-16 are listed in Table 9:
Patch 86222-16 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
The SET SWITCH L3 FILT command overwrote existing Layer 3 filters. If
multiple filter entries existed, this command changed the most recent entry,
rather than the one specified. These issues have been resolved. Also, the SET
SWITCH L3 FILT command now allows for creation of multiple filter
entries with the SETPRIORITY and SETTOS parameters. The Layer 3 filter
protocol match now has no limit.
A switch sometimes restarted if it was configured with static DHCP entries
and was handling a large number of DHCP clients. This issue has been
resolved.
Features in 86222-15
Patch file details for Patch 86222-15 are listed in Table 10:
Patch 86222-15 includes all issues resolved and enhancements released in
previous patches for Software Release 2.2.2, and the following enhancements:
A fatal error occurred when an invalid SNMP message was received. This
issue has been resolved.
When disabling port mirroring the VLAN tagging configuration of other
ports was corrupted. This issue has been resolved.
Table 9: Patch file details for Patch 86222-16.
Base Software Release File 86s-222.rez
Patch Release Date 1-Apr-2002
Compressed Patch File Name 86222-16.paz
Compressed Patch File Size 336952 bytes
PCR: 02092 Module: SWI Network affecting: No
PCR: 02099 Module: DHCP Network affecting: No
Table 10: Patch file details for Patch 86222-15.
Base Software Release File 86s-222.rez
Patch Release Date 26-Mar-2002
Compressed Patch File Name 86222-15.paz
Compressed Patch File Size 336608 bytes
PCR: 02015 Module: SNMP Network affecting: No
PCR: 02020 Module: SWI Network affecting: No