Cisco Bug: CSCsz78401 - WCCP: check redirect ACL protocol matches service group protocol
Jan 30, 2017
- Cisco IOS
Known Affected Releases
Symptom: On a Catalyst 6000 series router, configured for WCCP redirection, packets may be software switched leading to elevated CPU usage. Conditions: If a WCCP redirect ACL contains a permit entry for a protocol that does not match the associated WCCP service group the system reports the configuration error via a %WCCP-3-BADACE error message. However if the mis-matched protocol is UDP or TCP (UDP with a TCP-based service group or TCP with a UDP-based service group), no error message is generated and the hardware will punt packets to the RP for processing.
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