Cisco 800 Series Release Notes - Page 23

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Caveats

Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most

serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only

select severity 3 caveats are included in the caveats document.

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 12.1, see Caveats for Cisco IOS Release 12.1, which

lists severity 1 and 2 caveats and is located on Cisco.com and the Documentation CD-ROM.

If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any

Note

severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical

Assistance Center: Tool Index: Bug Toolkit. Another option is to go to

http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl.

Resolved Caveats - Releases 12.1(5)YC2 and 12.1(5)YC3

This section describes unexpected behavior that is fixed in Releases 12.1(5)YC2 and 12.1(5)YC3.

Management

CSCdw65903

An error can occur with management protocol processing. Please use the following URL for

further information:

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903

Caveats for Release 12.1(5)YC1

This section describes possibly unexpected behavior by Release 12.1(5)YC1. These caveats are all of

severity 3 (moderate).

Resolved Caveats for Release 12.1(5)YC1

This section describes possibly unexpected behavior by software releases prior to Release 12.1(5)YC1,

specific to the Cisco 811 and 813 routers, that have been resolved in Release 12.1(5)YC1 and above.

CSCdt77246:

When a router is configured for PPPoE and IP NAT, and an incoming packet does not contain an MSS

field or its TCP option field is not terminated by 0, the router might stop routing packets. This defect has

been fixed in 12.1(5)YC1 release.

78-12776-04

Release Notes for the Cisco 800 Series Routers for Cisco IOS Release 12.1(5)YC

Caveats