Cisco WCCP Ports and Monitoring Commands

[rico]

I have a non-Cisco cache server that works fine with my Cisco router. However, when I placed a firewall in between, the Cisco "sho ip wccp" total redirected packet stats remain at zero while the stats on the cache server show that redirected packets are being received and processed. Does anyone know all the ports that Cisco use for WCCP-related operations? How can I check the details of my Cisco's WCCP-related activites? Thx and Godspeed!

[mmellet]

You’re firewall should report which packets/ports are being blocked.

[ckopp]

According to WCCP doc .....

WCCP requires that the following protocols and ports are not filtered by any access-lists:

UDP (protocol type 17) port 2048. This port is used for control signaling. Blocking this type of traffic will prevent WCCP from establishing a connection between the router and cache engines.

GRE encapsulated (protocol type 47) frames. Blocking this type of traffic will prevent the cache engines from ever seeing the packets intercepted.

Cheers,

./CK