I want to configure Web cache communication protocol (WCCP) on our 1720 router - IOS version is 12.2(6a). What steps should I take?
You have some tasks to perform but before doing that check if you have at least IP plus feature set. If you have that ideally you need only one command to enable it but there are some additional optional commands also which you can set to further tweak your configuration.
Besides these two you can also configure multicast group and access-list for wccp on your router.
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