Specifications

Caveats for Cisco IOS Release 12.0

78-6455-12

Resolved Caveats—Cisco IOS Release 12.0(7)

• CSCdm72498

V.120 connections on a Cisco AS5800 access server might fail if you enter the

vty-async virtual-template command and 144 or more virtual-access interfaces are in use and a

new one is needed. On a failing connection, a “debug vtemplate” might show the following error

messages:

Vi202 VTEMPLATE: Messages from (un)cloning ... interface Virtual-Access1/0/58

Vi202 VTEMPLATE: Messages from (un)cloning ... default ip address

Vi202 VTEMPLATE: Messages from (un)cloning ... % Incomplete command

Workaround: Keep the number of virtual-access interfaces under 144.

• CSCdm74852

On a Cisco 3600 series router running Cisco IOS Release 12.0, IP MAC accounting only works

with process-switched packets. There is no workaround.

• CSCdm79007

Cisco Express Forwarding (CEF) fails between Token Ring Inter-Switch Link (TRISL) and either

Ether-ISL or Ethernet.

Workaround: Disable CEF switching and run standard fast switching.

• CSCdm80843

You should not attempt to remove a PCMCIA card while accessing it. There is no workaround.

• CSCdm84669

A Cisco 7200 or 7500 series router that is running Cisco IOS Release 12.0 and using encrypted

connections like Cisco Encryption Technology (CET) or IP Security (IPSec) over High-Speed

Serial Interface (HSSI) serial boards might fail. After the failure, no encrypted traffic can be sent

over the connection until the router reloads, but unencrypted traffic is not affected. There is no

workaround.

• CSCdm84682

If you shut down a PA-A2 circuit emulation service (CES) circuit, you will bring down

OAM-managed data PVCs that are defined on the same card. There is no workaround.

• CSCdm84931

A Cisco router that is running Cisco IOS Release 12.0(6.1) will fail to authenticate an Entrust CA

server. Entrust CA cannot be used with Cisco IOS Release 12.0(6.1). There is no workaround.

• CSCdm86777

A Cisco 7200 series router might not switch packets when crypto map is configured. This situation

occurs when you enable Cisco Express Forwarding (CEF) switching. Symptoms might include a

connection activity display of twice the normal number of encrypted and decrypted packets than

for the peer router when you enter the show crypto cisco connections command. There is no

workaround.

• CSCdm94728

Traffic to a Versatile Interface Processor (VIP) might not be routed properly on a Cisco 7500 or

7200 series router that is running Cisco IOS Release 10.3(6.3) if the destination link is encrypted

using Cisco Encryption Technology (CET). There is no workaround.