Cisco Cisco IOS Software Release 12.2
31
Caveats for Cisco IOS Release 12.2
OL-3513-16 Rev. G0
Resolved Caveats—Cisco IOS Release 12.2(31)
Workaround: After the router has reloaded, reconfigure the ip mroute-cache distributed interface
configuration command on each affected interface.
configuration command on each affected interface.
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CSCeh17756
Symptoms: The PIM assert mechanism may not function properly, causing PE routers to remove
VRF subinterfaces from output interface lists, and, in turn, causing multicast traffic to be dropped.
VRF subinterfaces from output interface lists, and, in turn, causing multicast traffic to be dropped.
Conditions: This symptom is observed when redundant PE routers and CE routers are located on one
LAN segment and when the CE routers select different PE routers as their next hop.
LAN segment and when the CE routers select different PE routers as their next hop.
Workaround: Change the configuration in such a way that all CE routers on one LAN segment select
the same PE router as their next hop.
the same PE router as their next hop.
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CSCei61732
Cisco IOS may permit arbitrary code execution after exploitation of a heap-based buffer overflow
vulnerability. Cisco has included additional integrity checks in its software, as further described
below, that are intended to reduce the likelihood of arbitrary code execution.
vulnerability. Cisco has included additional integrity checks in its software, as further described
below, that are intended to reduce the likelihood of arbitrary code execution.
Cisco has made free software available that includes the additional integrity checks for affected
customers.
customers.
This advisory is posted at
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CSCin55942
Symptoms: When you enter the channel-group command, a router may crash.
Conditions: This symptom is observed when you enter the channel-group command on native FE
interfaces on a Cisco 3660 router or on NM-xFE interfaces on a Cisco 3600 series or Cisco 3700
series.
interfaces on a Cisco 3660 router or on NM-xFE interfaces on a Cisco 3600 series or Cisco 3700
series.
The channel-group command should not be used on native FE ports or on NM-FE ports because it
is not supported on these ports. The channel-group command is meant only for NM-1GE GE ports
and switching FE ports.
is not supported on these ports. The channel-group command is meant only for NM-1GE GE ports
and switching FE ports.
Workaround: There is no workaround. The fix for this DDTS ensure that the router does not crash.
However, the EtherChannel is not supported on native FE ports and NM-xFE ports on a Cisco 3600
series and Cisco 3700 series.
However, the EtherChannel is not supported on native FE ports and NM-xFE ports on a Cisco 3600
series and Cisco 3700 series.
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CSCin81933
Symptoms: At a cold temperature, a Cisco 7200 series does not boot with a PA-A3-8T1IMA or
PA-A3-8E1IMA port adapter and generates a watchdog timeout error.
PA-A3-8E1IMA port adapter and generates a watchdog timeout error.
Conditions: This symptom is observed on a Cisco 7200 series that is configured with an NPE-300
or NPE-400 and an IMA port adapter.
or NPE-400 and an IMA port adapter.
Workaround: There is no workaround.
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CSCin93609
Symptoms: A Cisco 7200 series or Cisco 7500 series may crash when bridged PVCs are deleted and
added to an IMA interface of a PA-A3-8T1IMA or PA-A3-8E1IMA port adapter.
added to an IMA interface of a PA-A3-8T1IMA or PA-A3-8E1IMA port adapter.
Conditions: This symptom is observed when the router is configured for bridging across ATM IMA
PVCs, when the PVCs carry traffic, and when a script runs that deletes and adds PVCs across the
IMA links. These PVCs are not among the bridged PVCs that carry traffic. The router crashes in
about one to two hours.
PVCs, when the PVCs carry traffic, and when a script runs that deletes and adds PVCs across the
IMA links. These PVCs are not among the bridged PVCs that carry traffic. The router crashes in
about one to two hours.
Workaround: There is no workaround.