Cisco 811 How to use

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Release Notes for the Cisco 811 and 813 Routers

for Cisco IOS Release 12.1(2)XF

February 20, 2002

These release notes describe new features and significant software components for the Cisco 811

and 813 Routers that support Cisco IOS Release 12.1(2)XF5. These release notes are updated as needed

to describe new memory requirements, new features, new hardware support, software platform

deferrals, microcode or modem code changes, related document changes, and any other important

changes. Use these release notes with the Cross-Platform Release Notes for Cisco IOS Release

12.1 located on Cisco.com and the Documentation CD-ROM.

For a list of the software caveats that apply to Release 12.1(2)XF5, refer to the section “Caveats” and

to the online Caveats for Cisco IOS Release 12.1 T document. The caveats document is updated for

every 12.1 T maintenance release and is located on Cisco.com and the Documentation CD-ROM.

Contents

These release notes discuss the following topics:

•System Requirements, page 1

•New and Changed Information, page 6

•Limitations and Restrictions, page 7

•Important Notes, page 9

•Caveats, page 11

•Related Documentation, page 13

•Obtaining Documentation, page 21

•Obtaining Technical Assistance, page 22

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF 78-11070-02, Rev. H0

System Requirements

This section describes the system requirements for Release 12.1(2)XF5 and includes the following

sections:

•Memory Requirements

•Hardware Supported, page 2

•Determining Your Software Release, page 3

•Upgrading to a New Software Release, page 3

•Feature Set Tables, page 4

Memory Requirements

This section describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS

Release 12.1(2)XF5 on the Cisco 811 and 813 Routers.

Hardware Supported

Cisco IOS Release 12.1(2)XF5 supports the following Cisco 800 series routers:

•Cisco 811

•Cisco 813

For detailed descriptions of new hardware features, see New and Changed Information, page 6.

Table 1 Memory Requirements for the Cisco 811 and 813 Routers

Platforms Image Name Image

Required

Flash

Memory

Required

DRAM

Memory Runs

From

Cisco 811

and 813 IP c800-y6-mw 4 MB 8 MB RAM

IP Plus c800-sy6-mw 4 MB 8 MB RAM

IP/IPX Plus c800-nsy6-mw 4 MB 8 MB RAM

IP/FW c800-oy6-mw 4 MB 8 MB RAM

IP/FW Plus IPSec 56 c800-osy656i-mw 8 MB 8 MB RAM

IP/IPX/FW Plus IPSec 56 c800-nosy656i-mw 8 MB 8 MB RAM

Table 2 Supported Interfaces for the Cisco 800 Series

Router Ethernet LAN Ports Ethernet WAN Ports Analog Phone

Ports Console

Ports

Cisco 811 One 10BaseT (RJ-45) •One ISDN BRI U,

integrated DSU (RJ-11),

•One ISDN BRI S/T (R-J45)

– RJ-45

Cisco 813 One 10BaseT (RJ-45)

4-port hub •One ISDN BRI U,

integrated DSU (RJ-11),

•One ISDN BRI S/T (R-J45)

Two (RJ-11) RJ-45

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF

78-11070-02, Rev. H0

System Requirements

Cisco 811 and 813 Routers

The Cisco 811 and 813 Routers provide the following key hardware features:

•Flash memory: Default is 4 MB and is expandable to 12 MB. Additional Flash memory is installed

using Intel “Mini-Card” technology.

•Dynamic RAM: Default is 8 MB and is expandable to 16 MB, which must be obtained from

Cisco Systems.

•The central processing unit is a 33 MHz MPC 850 processor.

•Routers mounted on a wall.

Determining Your Software Release

To determine the version of Cisco IOS software currently running on your Cisco 800 series router, log

in to the router and enter the show version EXEC command. The following sample output from the

show version command indicates the version number on the second output line:

router> show version

Cisco Internetwork Operating System Software

IOS (tm) 800 Software (c800-y6-mw), Version 12.1(2)XF5, RELEASE SOFTWARE

Additional command output lines include more information, such as processor revision numbers,

memory amounts, hardware IDs, and partition information.

Upgrading to a New Software Release

For information about upgrading to a new software release, refer to the Cisco IOS Upgrade Ordering

Instructions product bulletin located at the following URL:

http://www.cisco.com/warp/public/cc/cisco/mkt/ios/prodlit/957_pp.htm.

Alternatively, the Cisco IOS Software page on Cisco.com has a variety of information, including

upgrade information, organized by release. If you have a Cisco.com account and log in, you can go

directly to: http://www.cisco.com/kobayashi/sw-center/sw-ios.shtml.

If you have a Cisco.com account and log in, you can reach the new software release upgrade page by

going to www.cisco.com and following this path: Service & Support:Software Center:Cisco IOS

Software:Product Bulletins:Software:General System Software Bulletins:Cisco IOS Upgrade

Ordering Instructions, No. 957

You can also reach the IOS Upgrade Planner, which allows you more flexibility to browse for your

preferred software, by going to www.cisco.com and following this path: Service & Support:Software

Center:IOS Upgrade Planner.

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF 78-11070-02, Rev. H0

System Requirements

Feature Set Tables

The Cisco IOS software is packaged in feature sets consisting of software images—depending on the

platform. Each feature set contains a specific set of Cisco IOS features. Release 12.1(2)XF5 supports

the same feature sets as Releases 12.1 and 12.1 T, but Release 12.1(2)XF5 can include new features

supported by the Cisco 811 and 813 Routers. Table 3 lists the feature sets supported by the Cisco 811

and 813 Routers.

Table 4 lists the features and feature sets supported by the Cisco 811 and 813 Routers in Cisco IOS

Release 12.1(2)XF5. The table uses the following conventions:

•Yes—The feature is supported in the software image.

•No—The feature is not supported in the software image.

Note These feature set tables only contain a selected list of features. These tables are not

cumulative—nor do they list all the features in each image.

Table 3 Feature Sets Supported by the Cisco 811 and 813 Routers

Image Name Feature Set Matrix Terms Software Image Platform

Cisco 800 Series IOS IP IP c800-y6-mw Cisco 811 and 813

Cisco 800 Series IOS IP Plus IP Plus c800-sy6-mw Cisco 811 and 813

Cisco 800 Series IOS IP/IPX Plus IP/IPX Plus c800-nsy6-mw Cisco 811 and 813

Cisco 800 Series IOS IP/FW IP/FW c800-oy6-mw Cisco 811 and 813

Cisco 800 Series IOS IP/FW Plus IPSec 56 IP/FW Plus IPSec 56 c800-osy656i-mw Cisco 811 and 813

Cisco 800 Series IOS IP/IPX/FW Plus IPSec 56 IP/IPX/FW Plus IPSec 56 c800-nosy656i-mw Cisco 811 and 813

Table 4 Feature List by Feature Set for the Cisco 811 and 813 Routers

Feature Sets

Features IP IP Plus IP/IPX

Plus IP/FW

IP/FW

Plus

IPSec 56

IP/IPX/FW

Plus

IPSec 56

Address Conservation

NAT Yes Yes Yes Yes Yes Yes

Ease of Use and Deployment

Auto SPID/SWITCH Connection Yes Yes Yes Yes Yes Yes

Cisco Fast Step Software, Version 2.5 Yes Yes Yes Yes Yes Yes

Configuration Express Yes Yes Yes Yes Yes Yes

Easy IP Phase I and II Yes Yes Yes Yes Yes Yes

TFTP Client Server Yes Yes Yes Yes Yes Yes

INS 64 Telephone Features (813 model only)

Call Blocking on Caller ID Yes Yes Yes Yes Yes Yes

Caller ID Yes Yes Yes Yes Yes Yes

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF

78-11070-02, Rev. H0

System Requirements

Call Waiting Yes Yes Yes Yes Yes Yes

Distinctive Ringing Yes Yes Yes Yes Yes Yes

E Ya Yo Yes Yes Yes Yes Yes Yes

I Number Yes Yes Yes Yes Yes Yes

ISDN Voice Priority Yes Yes Yes Yes Yes Yes

Nariwake Yes Yes Yes Yes Yes Yes

Troublesome Call Refusing Yes Yes Yes Yes Yes Yes

Voice Warp Yes Yes Yes Yes Yes Yes

Voice Warp Select Yes Yes Yes Yes Yes Yes

LAN

IP Yes Yes Yes Yes Yes Yes

IPX No No Yes No No Yes

NetBIOS Access Lists, Name Caching Yes Yes Yes Yes Yes Yes

Transparent Bridging Yes Yes Yes Yes Yes Yes

Management

CiscoView Yes Yes Yes Yes Yes Yes

SNMP, Telnet, Console Port Yes Yes Yes Yes Yes Yes

SNTP Yes Yes Yes Yes Yes Yes

Syslog Yes Yes Yes Yes Yes Yes

TACACS+ No Yes Yes No Yes Yes

Routing

IP Enhanced IGRP No Yes Yes No Yes Yes

IP Multicast (Relay Only) No Yes Yes No Yes Yes

IP-Policy Routing Yes Yes Yes Yes Yes Yes

IPX WAN No No Yes No No Yes

RIP, RIPv2, Triggered RIP Yes Yes Yes Yes Yes Yes

Security (Basic)

GRE Tunneling No Yes Yes No Yes Yes

NAT Yes Yes Yes Yes Yes Yes

PAP, CHAP, Local Password, MSCHAP Yes Yes Yes Yes Yes Yes

Route and Router Authentication Yes Yes Yes Yes Yes Yes

Token Card Authentication Yes Yes Yes Yes Yes Yes

Table 4 Feature List by Feature Set for the Cisco 811 and 813 Routers

Feature Sets

Features IP IP Plus IP/IPX

Plus IP/FW

IP/FW

Plus

IPSec 56

IP/IPX/FW

Plus

IPSec 56

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF 78-11070-02, Rev. H0

System Requirements

Security (Enhanced)

Cisco IOS Firewall No No No Yes Yes Yes

Context Based Access Control Lists No No No Yes Yes Yes

Denial of Service Detection No No No Yes Yes Yes

IPSec Encryption w/ 56-bit DES No No No No Yes Yes

Java Blocking No No No Yes Yes Yes

Real-time Alerts No No No Yes Yes Yes

Voice Features (Supplementary)

Call Conference Yes Yes Yes Yes Yes Yes

Call Hold / Retrieve Yes Yes Yes Yes Yes Yes

Call Transfer Yes Yes Yes Yes Yes Yes

Voice Priority Yes Yes Yes Yes Yes Yes

WAN

Frame Relay (Leased Line Only) Yes Yes Yes Yes Yes Yes

ISDN Yes Yes Yes Yes Yes Yes

ISDN Lease Line Yes Yes Yes Yes Yes Yes

ML-PPP, PPP Compression Yes Yes Yes Yes Yes Yes

WAN Optimization

BOD Yes Yes Yes Yes Yes Yes

DDR Yes Yes Yes Yes Yes Yes

IPX and SPX Spoofing No Yes No No No Yes

ISDN Caller ID Callback Yes Yes Yes Yes Yes Yes

Snapshot Routing Yes Yes Yes Yes Yes Yes

STAC Compression Yes Yes Yes Yes Yes Yes

Weighted Fair Queuing Quality of Service Yes Yes Yes Yes Yes Yes

X.25 ID No Yes Yes No Yes Yes

Table 4 Feature List by Feature Set for the Cisco 811 and 813 Routers

Feature Sets

Features IP IP Plus IP/IPX

Plus IP/FW

IP/FW

Plus

IPSec 56

IP/IPX/FW

Plus

IPSec 56

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF

78-11070-02, Rev. H0

System Requirements

New and Changed Information

The following sections list the new hardware and software features supported by the Cisco 800 series

for Release 12.1 T:

New Hardware and Software Features in Release 12.1(2)XF3

The following sections list the new hardware and software features supported by the Cisco Cisco 811

and 813 Routers for Release 12.1(2)XF3.

Cisco 811 and 813 Routers

Cisco 800 series routers provide network connectivity for small offices and corporate telecommuters.

The Cisco 811 and 813 routers additionally supply value-added services, such as virtual private

networks (VPNs), managed network services, point of sale (POS) applications, and secure Internet

access.

New Software Features in Release 12.1(1)

For information regarding the features supported in Cisco IOS Release 12.1, refer to the Cross-Platform

Release Notes and New Feature Documentation links at the following location on Cisco.com:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/index.htm

This URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and

click on the following path:

Service & Support:Technical Documents:Documentation Home Page:Cisco IOS Software

Configuration:Cisco IOS Release 12.1:Cisco IOS Release 12.1

Limitations and Restrictions

Supported MIBs

Table 5 lists the MIBs supported by the Cisco 800 series routers. Each group of MIBs corresponds to a

specific group of images.

Table 5 MIBs Supported by the Cisco 800 Series Routers

Image Names MIBs

c800-sy6-mw

c800-osy6-mw

c800-osy656i-mw

c800-nsy6-mw

c800-nosy656i-mw

c800-osy6-mw

CISCO-IPMROUTE-MIB

CISCO-SYSLOG-MIB

ENTITY-MIB (added)

IPMROUTE-MIB

RFC1382-MIB (X25MIB)

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF 78-11070-02, Rev. H0

System Requirements

c800-nsy6-mw

c800-nosy656i-mw

NOVELL-IPX-MIB

NOVELL-RIPSAP-MIB

OLD-CISCO-NOVELL-MIB

c800-osy656i-mw

c800-nosy656i-m

CISCO-IP-ENCRYPTION-MIB

c800-y6-mw

c800-oy6-mw

c800-sy6-mw

c800-osy6-mw

c800-osy656i-mw

c800-nsy6-mw

c800-nosy656i-mw

CISCO-BULK-FILE-MIB

CISCO-CALL-HISTORY-MIB

CISCO-CAR-MIB

CISCO-IMAGE-MIB (added)

CISCO-IP-STAT-MIB

CISCO-ISDN-MIB

CISCO-ISDNU-IF-MIB

CISCO-MEMORY-POOL-MIB

CISCO-PING-MIB

CISCO-SNAPSHOT-MIB

CISCO-TCP-MIB

OLD-CISCO-CHASSIS-MIB

OLD-CISCO-CPU-MIB

OLD-CISCO-FLASH-MIB (added)

OLD-CISCO-INTERFACES-MIB

OLD-CISCO-IP-MIB

OLD-CISCO-MEMORY-MIB

OLD-CISCO-SYSTEM-MIB

OLD-CISCO-TCP-MIB

IF-MIB

ISDN-MIB

SNMPv2-MIB

TCP-MIB

UDP-MIB

RFC1213-MIB (MIBII)

RFC1381-MIB (LAPBMIB)

RFC1398-MIB (ETHERMIB)

Table 5 MIBs Supported by the Cisco 800 Series Routers

Image Names MIBs

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF

78-11070-02, Rev. H0

System Requirements

Important Notes

The following sections contain important notes about Cisco IOS Release 12.1(2)XF5 that can apply to

the Cisco 811 and 813 Routers. (Also, see the “Caveats” section on page 11.)

Caveat CSCdr91706 and IOS HTTP Vulnerability

A defect in multiple releases of Cisco IOS software causes a Cisco router or switch to halt and reload

if the IOS HTTP service is enabled and you browse to http://router-ip/anytext?/ and enter the enable

password when it is requested. This defect can be exploited to produce a denial of service (DoS) attack.

This vulnerability can only be exploited if the enable password is known or not set.

The vulnerability, identified as Cisco bug ID CSCdr91706, affects virtually all mainstream Cisco

routers and switches running Cisco IOS software releases 12.0 through 12.1, inclusive. This is not the

same defect as CSCdr36952.

The vulnerability has been corrected and Cisco is making fixed releases available for free to replace all

affected IOS releases. Cisco urges all customers to upgrade to releases that are not vulnerable to this

defect as listed in the complete advisory, which is available at: http://www.cisco.com/warp/public/707/

ioshttpserverquery-pub.shtml. You are strongly encouraged to read the complete advisory.

B Channel Activation

When a call comes in, a B channel is activated. If the amount of traffic on the B channel exceeds a

threshold, the other B channel is activated. If the amount of traffic falls below the threshold, one of the

B channels is deactivated. The B channel that is initially activated when the call comes in is not

necessarily B1 nor is the B channel that is deactivated when the traffic level lessens necessarily B2.

Cisco 800 Series Router Clock—CSCdp09409

To run IPSec successfully, the Cisco 800 series router clock needs to be set accurately. Cisco 800 series

router clocks are set and maintained using Simple Network Time Protocol (SNTP). For best results, set

up a Network Time Protocol (NTP) server to periodically send time information messages to Cisco 800

series routers. See the SNTP configuration and command reference documentation for configuration

instructions. If you do not have an NTP server, you must reset the Cisco 800 series router clock using

the clock set command each time you restart the router.

The SNTP configuration documentation is available in the chapter “Monitoring the Router and

Network” in the “System Management” volume of the Configuration Fundamentals Configuration

Guide in the Cisco IOS documentation set. The SNTP command reference documentation is available

in the chapter “Router and Network Monitoring Commands” in the “System Management Commands”

volume of the Configuration Fundamentals Command Reference manual in the Cisco IOS

documentation set.

Release Notes for the Cisco 811 and 813 Routers for Cisco IOS Release 12.1(2)XF 78-11070-02, Rev. H0

System Requirements

CiscoView Application Support

The CiscoView application supports the Cisco 800 series routers. The CiscoView application provides

dynamic status, statistics, and comprehensive configuration information for Cisco switches, routers,

concentrators, and adapters. It displays a graphical view of Cisco devices. This network management

tool also provides configuring and monitoring functions and offers basic troubleshooting tips.

Dial Peer Limitation

The isdn answer1 and isdn answer2 commands determine which called telephone numbers, for

example, 555-1111 and 555-2222, a Cisco 800 series router can answer. Using these commands limits

a router to using the two dial peers that contain the telephone numbers 555-1111 and 555-2222. (When

not using these commands, a router can use up to six dial peers.) A sample scenario in which the isdn

answer1 and isdn answer2 commands are used is when a Cisco 801 or Cisco 803 router is connected

with other ISDN devices to an ISDN S-bus.

Downloading Images

Before attempting to download new images, you must first delete files in the router Flash memory. Be

sure to use the delete command, not command erase, to free up space. Entering erase removes all files,

including the configuration.

Excessive ISDN Line Activation

The following protocols send updates that can cause an ISDN line to be activated excessively, thereby

increasing your monthly ISDN line cost:

•IP

•User Datagram Protocol (UDP)

•IPX

•Cisco Discovery Protocol (CDP)

•Simple Network Time Protocol (SNTP)

See the Cisco 800 Series Routers Software Configuration Guide to set up extended access lists to

prevent IP, UDP, IPX, and SNTP updates from activating the ISDN line. For CDP, make certain that you

enter the no cdp enable command to disable CDP.

Hanging During Boot

If an illegal console configuration is issued to the router, the console fails the POST tests during boot

and causes the router to halt. The only way to recover from this state is to pull apart the soldered boot

Flash and re-burn the Boot ROM. This problem has been resolved in TinyROM version 1.0(3), a

downloadable ROM upgrade available from Cisco.com. Contact Cisco to upgrade to this version or

later, and prevent this problem from occurring.

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