Specifications

95
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(5)
• CSCdk12480
A VIP encryption engine does not successfully negotiate an encryption connection with an
encryption peer if traffic that needs to be encrypted or decrypted by the VIP is received at
initialization time (such as after a reload or an OIR). After the VIP has reinitialized, the
show crypto connection command shows an ID of “0.” However, show crypto map will show a
negative connection ID.
Workaround: Clear the ID manually with the clear cryp conn [connection_ID] [vip_slot #]
command. The router will display an error message, but it will successfully negotiate a crypto
connection.
• CSCdk27245
An ATM receiver might stop receiving frames after you remove a PVC from a shutdown ATM
subinterface, or if you remove an ATM subinterface.
Workaround: Clear the ATM interface.
• CSCdk33027
If two encryption access lists are different, but each has the same IP address as the lowest numbered
IP address in the ACL sources, and the same lowest numbered IP address in the ACL destinations,
they will be erroneously treated as the same encryption session. This results in only one of the two
encryption sessions being used at any one time. The one encryption session that is active might not
work reliably. There is no workaround.
• CSCdk34543
Encryption does not work properly when a Cisco 7500 series router is used in combination with a
VIP2-40, and a PA-2CE1 (or PA-CE1) port adapter if the channelized E1 interface is configured for
Frame Relay. This problem is related to distributed services, only the channelized E1 port adapters
on the VIP2-40 are affected.
Workaround: Use a VIP2-15 instead of a VIP2-40.
• CSCdk50386
The show syscon mibpoll command displays no data if the community strings on the system
controller manager and the system controller agent are different.
Workaround: Make the strings on the system controller manager and the system controller agent
identical.
• CSCdk55881
When Distributed Cisco Express Forwarding (DCEF) is enabled on Internet routers, the counters
on access lists are not incremented. There is no workaround.
• CSCdk69415
An RSP-based router running the rsp-isv56-mz.112-15a.P Cisco IOS image stops passing IP traffic
destined through two FDDI port adapters when the traffic is encrypted and decrypted on a VIP2-40.
Workaround: Reload the microcode. The problem might reoccur.
• CSCdk73370
A Cisco 3600 series router with a Multi-BRI (MBRI) cannot forward transparent bridging packets
on the BRI leased 64-kbps line.
Workaround: Downgrade to a Cisco IOS Release 11.2 image.