Cisco Cisco IOS Software Release 12.4(4)T

Conditions: This issue is observed in an LAC router. 

Workaround: There is no workaround.

CSCek40618

Symptoms: A router may crash by address error (load or instruction fetch) exception during normal 
operation.

Conditions: This symptom has been observed when the router is configured with VPDN and 
Multilink PPP, using Virtual-Template interfaces.

Workaround: There is no workaround. 

CSCsd19867

Symptoms: BRI interfaces does not come up when you reload a router. You must enter the shutdown 
interface configuration command followed by the no shutdown interface configuration command 
on the affected BRI interfaces to bring them up.

Conditions: This symptom is observed when you enter the no isdn spoofing command and reload 
the router.

Workaround: Disable the no isdn spoofing command. 

CSCse16539

Symptoms: VPDN loadbalancing incorrectly biases to one LNS (IP address) instead of sharing the 
session load between the different LNSs after LNS return from the busy list.

Conditions: This occurs when multiple LNSs are configured for one vpdn-group and are 
unreachable. They are moved to the busy list. Once the LNSs become reachable again, this problem 
occurs.

Workaround: There is no workaround. 

Cisco IOS Release 12.4(4)T3 is a rebuild release for Cisco IOS Release 12.4(4)T. The caveats in this 
section are resolved in Cisco IOS Release 12.4(4)T3 but may be open in previous Cisco IOS releases. 

The following information is provided for each caveat:

Symptoms—A description of what is observed when the caveat occurs.

Conditions—The conditions under which the caveat has been known to occur.

Workaround—Solutions, if available, to counteract the caveat.

CSCeh25393

Symptoms: A memory leak occurs when many VLANs are being created and deleted.