Specifications

44
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(10)
• CSCdp72137
When the Incoming Interface List (IIL) changes for a (S,G) state, the F flag is not updated. This
situation might cause registers to be sent for sources that are not directly connected anymore. There
is no workaround.
• CSCdp99619
A Cisco RSP4 Route Switch Processor might reload if the managed timer does not work properly.
This situation rarely occurs. There is no workaround.
ISO CLNS
• CSCdm89814
The redistribute static command can apply in either the router Intermediate
System-to-Intermediate System (IS-IS) context or the router International Organization for
Standardization (ISO) Interior Gateway Routing Protocol (IGRP) context. It is possible to
differentiate between IP and Connectionless Network Service (CLNS) static routes in router IS-IS,
but impossible to differentiate between IP and CLNS static routes in router ISO-IGRP that also
automatically append CLNS to the redistribute static command.
Workaround: Upgrade to Cisco IOS Release 12.0(10).
• CSCdp39702
If a Connectionless Network Service (CLNS) neighbor has multiple associated area addresses, then
a Terminal Identifier Address Resolution Protocol addresses, then a Target Identifier Address
Resolution Protocol resolve request will automatically choose the first entry. If the first entry is in
the process of being replaced by the second area, then the Target Identifier Address Resolution
Protocol request will fail.
Workaround: Clear the CLNS cache.
Miscellaneous
• CSCdk64756
A Dynamic Host Configuration Protocol (DHCP) proxy agent on a Cisco router assigns the same
IP address to users that are on different ports but have the same username.
Workaround: Assign unique usernames.
• CSCdm70419
A Cisco router might reload because of a memory corruption. There is no workaround.
• CSCdm85458
A Cisco router might reload if traffic shaping is configured with committed information rate (CIR)
within a range of 1 to 999 bps.
Workaround: Configure CIR above 1000 bps.
• CSCdp08508
A Cisco 4500 series router might slow down or pause indefinitely if you configure a mac-forward
filter over transparent bridging on a Token Ring interface. There is no workaround.
• CSCdp42529
A Cisco 7200VXR router might experience a situation where switched virtual circuits (SVCs) are
disconnected intermittently and then recovered after 7 to 20 hours. There is no workaround.