Specifications
53
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(9)
have:
access-list 101 permit udp 200.200.20.0 0.0.0.255 ne 19 200.200.30.0 0.0.0.255 ne 19
access-list 101 deny udp 200.200.20.0 0.0.0.255 200.200.30.0 0.0.0.255 eq 19 access-list
101 deny udp 200.200.20.0 0.0.0.255 eq 19 200.200.30.0 0.0.0.255
• CSCdm36742
Formatting boot flash memory on a Cisco 7100 series router might disable access to boot flash
memory. This situation occurs with crypto images in Cisco IOS Release 12.0(5)XE, Cisco IOS
Release 12.0(5)XE1, and Cisco IOS Release 12.0(5)XE2, and the situation might occur with some
noncrypto images.
Workaround: Format Flash with a working image, or do not format Flash.
• CSCdm70036
Context-based Access Control (CBAC) code might reject the alerting messages that arrive before
the connect message that carries the port information for the return data stream. The connect
message is processed, but the alerting message needs to be processed first for the data stream to be
received properly. There is no workaround.
• CSCdm79157
Cisco Encryption Technology (CET) might not function correctly when configured on a Cisco
router with generic routing encapsulation (GRE) tunnel. There is no workaround.
• CSCdm82594
Some internal registers might not correctly update when the link goes down.
Workaround: Upgrade to Cisco IOS Release 12.0(7)T.
• CSCdm90466
If there is a large network delay and Asynchronous Serial Protocol (ASP) does not support local
acknowledgements (ACKs), you need to increase the poll interval on the end device to
accommodate the delay. There is no workaround.
• CSCdp05107
Permanent virtual circuits (PVCs) might not transmit if the configuration for the PVC is changed
while the outbound rate on that PVC exceeds sustainable cell rate (SCR).
Workaround: Enter the clear interface ATM slot/port EXEC command when this situation occurs.
• CSCdp07473
A Cisco 7200 series router might reload and display the following error message:
%SCHED-2-WATCH: Attempt to enqueue uninitialized watched queue (address 0).
-Process= “<interrupt level>”, ipl= 1, pid= 2
-Traceback= 6036BE38 6033C5B4 60258F94 6026F794 603A846C 60266368 6026B988
There is no workaround.
• CSCdp07476
When you enable bridging on a Fast EtherChannel (FEC), the host functionality might not work
properly, but bridging functionality is not affected. There is no workaround.
• CSCdp16515
A Cisco router will reload if IP Security (IPSec) is enabled with fast switching on links that use
PPP encapsulation with PPP compression. There is no workaround.