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Cisco Bug: CSCvi55931 - Proxy Bypass Causes WCCP Service ID to be changed

Last Modified

Oct 03, 2018

Products (1)

  • Cisco Web Security Appliance

Known Affected Releases

10.1.1-234 10.1.2-050 10.1.3-039 10.1.3-050 10.1.3-054 10.5.1-296 10.5.2-042 10.5.2-060 10.5.2-061 10.5.2-066 10.5.2-071 10.5.2-072 11.0.0-641 11.5.0-FCS-614 9.0.1-162 9.1.2-022 9.1.2-040 9.1.2-041 9.1.3-016 9.1.3-024 WSA10.0.0-233

Description (partial)

For traffic bypassed by WSA, WCCP service ID in the returned packet is changed

If the WCCP network device doesn't process the returned packet because of service ID being changed, then traffic placed into bypass list may receive gateway timeout issues

1) WCCP used for transparent redirection
2) GRE is negotiated as Forwarding and Return method for WCCP
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