Cisco Cisco IOS Software Release 12.4(4)T

has been assigned to document this issue. Additional information on Cisco’s security vulnerability 
policy can be found at the following URL:

 

Cisco IOS Release 12.4(15)T15 is a rebuild release for Cisco IOS Release 12.4(15)T. The caveats in this 
section are resolved in Cisco IOS Release 12.4(15)T15 but may be open in previous Cisco IOS releases.

CSCdw49329

Symptoms: A Cisco 3660 router may reload with a bus error.

Conditions: The stack trace indicates that the CPU has attempted to access an invalid address while 
the router is executing Network Time Protocol (NTP) functions.

Workaround: Disable NTP on the router. 

CSCsg31704

Symptoms: CPU utilization spikes when the show running-config command is issued.

Conditions: This symptom is observed when the show running-config command is issued.

Workaround: There is no workaround. 

CSCsh64365

Symptoms: A ping does not yield a 100-percent result after you have entered the no 
set-overload-bit command for an IS-IS configuration.

Conditions: This symptom is observed on a Cisco 7200 series but is not platform-specific.

Workaround: There is no workaround. 

CSCsj01961

Symptoms: A router may not boot and may generate an “INSUFFICIENT MEMORY” error 
message.

Conditions: This symptom is observed on a Cisco 7600 series that has an RSP720 when the ifIndex 
table is corrupt, preventing SNMP from initializing because SNMP attempts to use the ifIndex table 
from NVRAM.

Workaround: There is no workaround. 

CSCsk48102

Symptoms: A supervisor crashes at ru_transfer_buffer_allocation().

Conditions: This symptom is a very rare random occurrence that occurs only in devices that have an 
uptime of over 1 year. In some cases, the devices were up for over 2 years before encountering this 
problem.

Workaround: There is no workaround. Reloading resolves the issue; the device resumes normal 
operation after the crash. 

CSCsk98507

Symptoms: Router crashes after IPX routing is enabled.