ZyXEL Communications NXC-8160 Instruction Manual

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Firmware Release Note
ZyXEL NXC-8160
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Release V1.00(Z.)C0|2007//16
Date:  16, 2007
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ZyXEL v1.00_ZT.0 release notes:
Notes:
 Management VLAN can not be the same as WLAN VLANs for security concern
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Known Issues:
1. Only the first WEP key can work in this release.
2. Allow multiple user log-in in this release, including web, console and SSH.
3. SSID strings can not exceed 23 characters
4. Maximum number of SSIDs is limited to 20 in this release, this is due to the MAC address
allocation, not the firmware functionality is limited.
V1.00(ZT.0) C0
1. Formal release from ZT.0 B2
V1.00(ZT.0) B2
1. New Features and functionalities
All three password are set to ‘default’
54 and 48Mbps added to the default configuration as optional rates
“SWITCH” instances in GUI replaced by “CONTROLLER”
“Static 64/128 & 802.1x” changed to “WEP64/128 & 802.1x Authentication
(LEAP)”
Name changed to NXC-8160
2. Solved issues and limitations
Assigned SSID table can be emptied.
Syslog interval
Centralized configuration
54Mbps and 48Mbps were not set (disabled); set to Optional
Time & date validation
Uninitialized array warning when entering an illegal IP address (LAN page)
Un-intentioned powering off of APs in AP power page
Wrong index in rename SSID; index removed
status page refresh interval
Switch’s management VLAN accessible without VLAN
Only the first WEP key can work in this release.
Allow multiple user log-in in this release, including web, console and SSH.
SSID strings can not exceed 23 characters
Maximum number of SSIDs is limited to 20 in this release, this is due to the MAC address
allocation, not the firmware functionality is limited.
3. Reported issues and solutions
“switch” may still appear in Centralized Configuration page
In the 2.4 Ghz 802.11b (as opposed to 802.11g) power is somewhat degraded. This

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issue will be solved by a firmware update.
When using 2.4GHz bands, current design is optimized for channels 1,6,11.
4. Installation and upgrade notes
None
5. Downgrade notes
None
©2007 Extricom All rights reserved page 2 of 4
Release notes
6. Operation notes
None
7. Known limitations
Short preamble removed from GUI (WEB)
Maximum number of BSSIDs is 20 instead of 32.
There is no support for Novell IPX .
ZyXEL v1.00_ZT.0_b1 release notes:
1. New Features and functionalities
Improved Rate Adaptation thresholds.
New ZyXEL GUI
2. Solved issues and limitations
SOLVED – Power save bit in control frames.
SOLVED – WPA key in WPA-PSK mode is now renewed after renaming of an
ESSID. There is no need to re-enter the pass phrase in ASCII for the new ESSID.
When in WPA pass phrase HEX mode rename of the ESSID is blocked. Only in
ASCII mode renaming of the ESSID is possible.
SOLVED – Adaptation did not start at highest rate.
SOLVED – ASCII characters 32-126 may be used in the pass phrase. Other special
characters should be avoided.
3. Reported issues and solutions
WEP Keys – WEP works with key index 1 only. Use WEP key index 1.
Redundant authentication packet sent by Centrino (while being associated) is
ignored by switch. As a result, Centrino may rarely disconnect and reconnect. This
may be observed under heavy traffic only.
Multiple RADIUS servers support: Use only one Radius server IP address for all
SSIDs. Same server should be used for all SSIDs
EAPOL_START is ignored by switch (to avoid DoS attacks)
Certain wireless clients do not connect to the system in pure 802.11g. Use mixed
mode in order to support these clients.
According to the standard ESSID may be up to 32 Alphanumeric characters only.
When working with SpectraLink handsets in WPA-PSK, it is recommended to
manually add the following lines to the XML configuration file:
In <channel> tag
©2007 Extricom All rights reserved page 3 of 4
Release notes
<ignore_rates_num>0</ignore_rates_num>
In <security> tag
<key_timeout>3000000</key_timeout>
<key_timeout_count>5</key_timeout_count>
Advisory: number of APs should not be divisible by DTIM value e.g eight APs and
DTIM=4 is not a good selection, chose DTIM=3 in such a case.
4. Installation and upgrade notes

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None
5. Downgrade notes
None
6. Operation notes
None
7. Known limitations
Wireless VID should be different from management VID for the time being.
Setting a wireless VID that creates such a conflict is not blocked by web interface.
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