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July 24, 2000
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Note You can find the most current Cisco IOS documentation on Cisco Connection Online (CCO ). These electronic documents may contain updates and modifications made after the hardcopy documents were printed. |
These release notes for the Cisco 800 series routers describe the enhancements provided in Cisco IOS Release 12.1 T. These release notes are updated as needed.
For a list of the software caveats that apply to Cisco IOS Release 12.1 T, see Caveats for Cisco IOS Release 12.1 T that accompanies these release notes. The caveats document is updated for every maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.1 on CCO and the Documentation CD-ROM.
These release notes describe the following topics:
These release notes describe the Cisco 800 series routers for Cisco IOS Release 12.1 T, which is an early deployment (ED) release based on Cisco IOS Release 12.1. Early deployment releases contain fixes for software caveats and support for new Cisco hardware and software features.
The following list shows the recent early deployment releases of the Cisco 801-804 routers:
The following list shows the recent early deployment releases of the Cisco 805 router:
For more information, see the "Platform-Specific Documents" section about accessing related release note documents.
This section describes the system requirements for Cisco IOS Release 12.1 T:
| Platforms | Image Name | Software Image | Recommended Flash Memory | Recommended DRAM Memory | Runs From |
|---|---|---|---|---|---|
Cisco 801-804 Routers | IP | c800-y6-mw | 8 MB | 4 MB | RAM |
IP Plus | c800-sy6-mw | 8 MB | 4 MB | RAM | |
IP/IPX Plus | c800-nsy6-mw | 8 MB | 4 MB | RAM | |
IP/Firewall | c800-oy6-mw | 8 MB | 4 MB | RAM | |
IP/Firewall Plus | c800-osy6-mw | 8 MB | 4 MB | RAM | |
IP/FW/Plus/IPSEC 56 | c800-osy656i-mw | 8 MB | 8 MB | RAM | |
IP/IPX/FW/IPSEC 56 Plus | c800-nosy656i-mw | 12 MB1 | 12 MB1 | RAM | |
Cisco 805 Router | IP | c805-y6-mw | 4 MB | 8 MB | RAM |
IP Plus | c805-sy6-mw | 4 MB | 8 MB | RAM | |
IP/IPX Plus | c805-nsy6-mw | 4 MB | 8 MB | RAM | |
IP/Firewall | c805-oy6-mw | 4 MB | 8 MB | RAM | |
IP/Firewall Plus | c805-osy6-mw | 4 MB | 8 MB | RAM | |
IP/FW/Plus/IPSEC 56 | c805-osy656i-mw | 8 MB | 8 MB | RAM | |
IP/IPX/FW/IPSEC 56/Plus | c805-nosy656i-mw | 12 MB1 | 12 MB1 | RAM |
| 18 MB in Cisco IOS Releases 12.1(1)T and 12.1(2)T. |
Cisco IOS Release 12.1 T supports the Cisco 800 series routers:
For detailed descriptions of the new hardware features, see "New and Changed Information" section.
| Router | Ethernet Ports | ISDN Ports | Serial Ports | Telephone Ports | Console Ports |
|---|---|---|---|---|---|
Cisco 801 | One 10BaseT (RJ-45) | ISDN BRI S/T (RJ-45) | - | - | RJ-45 |
Cisco 802 | One 10BaseT (RJ-45) | ISDN BRI U, integrated Network Termination 1 (NT-1) (RJ-45) | - | - | RJ-45 |
Cisco 803 | Four-port 10BaseT (RJ-45) hub | ISDN BRI S/T (RJ-45) | - | Two (RJ-11) | RJ-45 |
Cisco 804 | Four-port 10BaseT (RJ-45) hub | ISDN BRI U, integrated NT-1 (RJ-45) | - | Two (RJ-11) | RJ-45 |
Cisco 805 | One 10BaseT (RJ-45) | - | One smart serial (RS-232, RS-449, RS-530, RS-530A,X.21 and V.35) | - | RJ-45 |
The Cisco 801-804 routers provide the following key hardware features:
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Note To add additional Flash memory to the Cisco 801-804, you will remove the existing Flash card and install a the new one. |
The Cisco 805 router connects small professional offices over serial lines to corporate networks and to the Internet, and provides the following key features:
To determine the version of Cisco IOS software running on your Cisco 800 series router, log in to the router and enter the show version EXEC command:
router> show version Cisco Internetwork Operating System Software IOS (tm)12.1 TSoftware (C800-Y6-MW), Version12.1(3)T, RELEASE SOFTWARE
For general information about upgrading to a new software release, see Cisco IOS Upgrade Ordering Instructions located at:
http://www.cisco.com /warp/public/cc/cisco /mkt/ios/prodlit /957_pp.htm
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.
Cisco IOS Release 12.1 T supports the same feature sets as Cisco IOS Release 12.1, but Release 12.1 T can include new features supported by the Cisco 800 series routers.
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Caution Cisco IOS images with strong encryption (including, but not limited to 168-bit (3DES) data encryption feature sets) are subject to United States government export controls and have limited distribution. Strong encryption images to be installed outside the United States are likely to require an export license. Customer orders may be denied or subject to delay due to United States government regulations. When applicable, purchaser/user must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com. |
Cisco 801-804 router features and feature sets are shown in Table 3 and Table 4.
Cisco 805 router features and feature sets are shown inTable 5.
All three tables use the following conventions:
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Note These feature set tables might contain only a selected list of features. They might not be cumulative or complete in listing all the features in each image. |
| Feature Set | ||||||||
|---|---|---|---|---|---|---|---|---|
| Features | In | IP | IP Plus | IP/IPX Plus | IP/FW | IP/FW Plus | IP/FW/Plus/ IPSEC 56 (VPN) | IP/IPX/FW/ IPSEC 56/ Plus (VPN) |
| Address Conservation |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
| Advanced Telephone Features1 |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Basic Services |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Dial |
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| (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Ease of Use and Deployment |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes2 | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| IP Routing Protocols |
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| (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| LAN |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | Yes | No | No | No | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Management |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | Yes | Yes | No | Yes | Yes | Yes |
| Routing |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | No | Yes | No | No | No | Yes |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Security |
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| No | No | No | No | No | No | No |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Voice Technologies |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| WAN |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
| WAN Optimization |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | No | Yes | No | No | No | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | Yes | Yes | No | Yes | Yes | Yes |
| 1Advanced Telephone Features are available on the Cisco 803 and 804 routers only. These features require supplementary services from a telephone company. 2The X.25 configuration feature requires the use of the Cisco command line interface (CLI). |
| Feature | IP | IP Plus | IP/IPX Plus | IP/FW | IP/FW Plus | IP/FW/Plus/ IPSec | IP/FW/Plus/ IPSec Plus |
|---|---|---|---|---|---|---|---|
Routed Protocol | IP | IP | IP/IPX | IP | IP | IP | IP/IPX |
Routing Protocol | RIP Snapshot | RIP/IP- Snapshot | RIP/IP- Snapshot | RIP/IP- Snapshot | RIP/IP- Snapshot | RIP/IP- Snapshot | RIP/IP- Snapshot |
Tunneling |
| GRE | GRE |
| GRE | GRE | GRE |
X.25 |
| X.25 | X.25 |
| X.25 | X.25 | X.25 |
SNTP (Simple Network Time Protocol) | SNTP | SNTP | SNTP | SNTP | SNTP | SNTP | SNTP |
Multicast |
| IP Multicast Forwarding | IP Multicast Forwarding |
| IP Multicast Forwarding | IP Multicast Forwarding | IP Multicast Forwarding |
Management | SNMP | SNMP/ | SNMP/ | SNMP | SNMP/ | SNMP/ | SNMP/ |
Manual ISDN Calls (see reference for commands) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Feature Set | ||||||||
|---|---|---|---|---|---|---|---|---|
| Features | In | IP | IP Plus | IP/IPX Plus | IP/FW | IP/FW Plus | IP/FW/Plus/ IPSEC 56 (VPN) | IP/IPX/FW/ IPSEC 56/ Plus (VPN) |
| Address Conservation |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
| Basic Services |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Dial |
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| (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Ease of Use and Deployment |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes1 | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| IP Routing Protocols |
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| (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| LAN |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | Yes | No | No | No | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Management |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | Yes | Yes | No | Yes | Yes | Yes |
| Routing |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | No | Yes | No | No | No | Yes |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Security |
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| No | No | No | No | No | No | No |
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| No | Yes | Yes | No | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | Yes | Yes |
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| No | No | No | No | No | No | No |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| WAN |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | No | No | No | No | No | No |
| WAN Optimization |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | No | No | No | No | No | No |
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| No | No | Yes | No | No | No | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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| No | Yes | Yes | No | Yes | Yes | Yes |
| 1The X.25 configuration feature requires the use of the Cisco command line interface (CLI). |
The following sections list the new hardware and software features supported by the Cisco 800 series routers for Release 12.1 T.
There are no new software features supported by the Cisco 800 series routers for Release 12.1(3)T.
The following new software features are supported by the Cisco 800 series routers for Release 12.1(2)T:
The CAPI is an application programming interface standard used to access ISDN equipment connected to Basic Rate Interfaces (BRIs) and Primary Rate Interfaces (PRIs). RCAPI is the CAPI feature configured remotely from a PC client.
The framing protocols supported by CAPI include High-Level Data Link Control (HDLC), HDLC inverted, bit transparent (speech), and V.110 synchronous/asynchronous.
CAPI integrates the following data link and network layer protocols:
CAPI supports the following features:
The explosive growth of the Internet has placed the focus on the scalability of Interior Gateway Protocols such as OSPF. The networks using OSPF are becoming larger every day and will continue to expand to accommodate the demand to connect to the Internet.
Internet Service Providers and customers with large networks have regularly complained that OSPF has a traffic overhead, even when the network topology is stable.
By design, OSPF requires link-state advertisements (LSAs) to be refreshed as they expire after 3600 seconds. Some implementations have tried to improve the flooding by reducing the frequency to refresh from 30 minutes to around 50 min. or so.
This solution reduces the amount of refresh traffic but requires at least one refresh before the LSA expires. The OSPF Flooding Reduction feature works by reducing unnecessary refreshing and flooding of already known and unchanged information. To achieve this reduction, the LSAs are now flooded with the higher bit set, thus making them DoNotAge (DNA) LSAs.
There are no new software features supported by the Cisco 800 series in Cisco IOS Release 12.1(1)T.
Old Cisco Management Information Bases (MIBs) will be replaced in a future release. Currently, OLD-CISCO-* MIBs are being converted into more scalable MIBs—without affecting existing Cisco IOS products or NMS applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 6.
| Deprecated MIB | Replacement |
|---|---|
OLD-CISCO-APPLETALK-MIB | RFC1243-MIB |
OLD-CISCO-CHASSIS-MIB | ENTITY-MIB |
OLD-CISCO-CPUK-MIB | To be decided |
OLD-CISCO-DECNET-MIB | To be decided |
OLD-CISCO-ENV-MIB | CISCO-ENVMON-MIB |
OLD-CISCO-FLASH-MIB | CISCO-FLASH-MIB |
OLD-CISCO-INTERFACES-MIB | IF-MIB CISCO-QUEUE-MIB |
OLD-CISCO-IP-MIB | To be decided |
OLD-CISCO-MEMORY-MIB | CISCO-MEMORY-POOL-MIB |
OLD-CISCO-NOVELL-MIB | NOVELL-IPX-MIB |
OLD-CISCO-SYS-MIB | (Compilation of other OLD* MIBs) |
OLD-CISCO-SYSTEM-MIB | CISCO-CONFIG-COPY-MIB |
OLD-CISCO-TCP-MIB | CISCO-TCP-MIB |
OLD-CISCO-TS-MIB | To be decided |
OLD-CISCO-VINES-MIB | CISCO-VINES-MIB |
OLD-CISCO-XNS-MIB | To be decided |
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Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find the current list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to CCO, press Login, and click to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB. |
The following sections contain important notes about Cisco IOS Release 12.1 T that can apply to the Cisco 800 series routers.
Cisco IOS Release 12.1(1)T did not release Cisco 800 series images (c800-*-mw, c805-*-mw). Release 12.1(2)T is the first 12.1 T release that supports the Cisco 800 series images.
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.
Before attempting to download new images, you must first delete files in your router's Flash memory. Be sure to use the delete command, not erase, to free up space. Entering erase will remove all files, including the configuration.
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.
The following protocols send updates that can cause an ISDN line to be activated excessively thereby increasing your monthly ISDN line cost:
For information on preventing this situation, refer to the Cisco 800 Series Routers Software Configuration Guide. This guide contains information on setting 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.
If an illegal console configuration is issued to the router, the console will then fail the POST test during boot and cause the router to hang. There is no way to recover a unit in this state except for pulling the soldered boot flash and re-burning the boot ROM.
This problem has been resolved in TinyROM version 1.0(3), a downloadable ROM upgrade available from CCO. Please contact Cisco to upgrade to this version or later, and prevent this problem from occurring.
A Phone Mate answering machine model 9200 failed to recognize the ringing signal sent by AMD R79 ringing SLIC. This was confirmed by testing against Phone Mate model 3750 and newer model 9300.
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.
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.
For information on caveats in Cisco IOS Release 12.1 T, see Caveats for Cisco IOS Release 12.1 T.
All caveats in Cisco IOS Release 12.1 are also in Cisco IOS Release 12.1 T.
For information on caveats in Cisco IOS Release 12.0, see Caveats for Cisco IOS Release 12.1, which lists severity 1 and 2 caveats and is located on CCO and the Documentation CD-ROM.
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, go to CCO and press Login. Then go to Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go to http://www.cisco.com/support/bugtools. |
This section describes possibly unexpected behavior by Release 12.1(2)T, specific to the Cisco 800 series routers. Only severity 1 and 2 caveats are included.
If a Cisco 804 router is running the Cisco IOS Release 12.0(4)T1 IP image and using an electrical phone plugged into a plain old telephone service (POTS) port with the ISDN line provisioned with US Caller ID, the router might have intermittent ringing problems.
This caveat has been resolved in Cisco IOS Release 12.1(3)T.
A defect in Cisco IOS software will cause a Cisco router or switch to halt and reload if the IOS HTTP service is enabled and browsing to "http://<router-ip>/%%" is attempted. This defect can be exploited to produce a denial of service (DoS) attack.
The vulnerability, identified as Cisco bug ID CSCdr36952, affects virtually all mainstream Cisco routers and switches running Cisco IOS Releases 11.1 through 12.1, inclusive. The vulnerability has been corrected, and Cisco is making fixed releases available to replace all affected IOS releases. Customers are urged to upgrade to releases that are not vulnerable to this defect as shown in detail below.
The vulnerability can be mitigated by disabling the IOS HTTP server, using an access-list on an interface in the path to the router to prevent unauthorized network connections to the HTTP server, or applying an access-class option directly to the HTTP server itself. The IOS HTTP server is enabled by default only on Cisco 1003, 1004, and 1005 routers that are not configured. In all other cases, the IOS http server must be explicitly enabled in order to exploit this defect.
The complete advisory, including software fixes and workarounds, is available at:
http://www.cisco.com/warp/public/707/ioshttpserver-pub.shtml .
The following sections describe the documentation available for the Cisco 800 series routers. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.
Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on CCO and the Documentation CD-ROM.
Use these release notes with these documents:
The following documents are specific to Cisco IOS Release 12.1 and are located on CCO and the Documentation CD-ROM:
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, go to CCO and press Login. Then go to Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go to http://www.cisco.com/support/bugtools. |
These individual and groups of documents are available for the Cisco 801-804 routers on CCO and the Documentation CD-ROM:
On CCO at:
Technical Documents: Documentation Home Page: Cisco Product Documentation: Access Servers and Access Routers: Fixed Access Routers: Cisco 801-804 Routers
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Fixed Access Routers: Cisco 801-804 Routers
These individual and groups of documents are available for the Cisco 805 routers on CCO and the Documentation CD-ROM:
On CCO at:
Technical Documents: Documentation Home Page: Cisco Product Documentation: Access Servers and Access Routers: Fixed Access Routers: Cisco 805 Router
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Fixed Access Routers: Cisco 805 Router
Feature modules describe new features supported by Cisco IOS Release 12.1 T and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature module information is incorporated in the next printing of the Cisco IOS documentation set.
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents that are shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered the printed versions.
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
On CCO and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set.
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Table 7 describes the contents of the Cisco IOS Release 12.1 software documentation set, which is available in electronic form and in printed form ordered.
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Note You can find the most current Cisco IOS documentation on CCO and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hard-copy documents were printed. |
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1
| Books | Major Topics |
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| Cisco IOS User Interfaces |
| Using Cisco IOS Software |
| Preparing for Dial Access |
| Interface Configuration Overview |
| IP Addressing and Services |
| AppleTalk and Novell IPX Overview |
| Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Overview |
| Multiservice Applications Overview |
| Quality of Service Overview |
| Security Overview |
| Cisco IOS Switching Services Overview |
| Wide-Area Networking Overview |
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Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find the current list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to CC, press Login, and click to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB. |
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.
Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).
Cisco provides Cisco Connection Online (CCO) as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed documents, or by sending mail to Cisco.
Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
CCO's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through CCO, you will find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online support services, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.
You can access CCO in the following ways:
You can e-mail questions about using CCO to cco-team@cisco.com.
The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.
To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.
To contact by e-mail, use one of the following:
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In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
If you have a CCO log-in account, you can access the following URL, which contains links and tips on configuring your Cisco products:
http://www.cisco.com/kobayashi/technotes/serv_tips.shtml
This URL is subject to change without notice. If it changes, point your Web browser to CCO, press Login, and click on this path: Technical Assistance Center: Technical Tips.
The following sections are provided from the Technical Tips page:
If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:
Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate and value your comments.
Posted: Mon Aug 28 12:15:49 PDT 2000
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