Pfsense wccp squid with cisco

[drvirus]

Hi i want to ask what things i need to do wccp with pfsense & cisco  with method L1 wccp

i do create GRE tunnel from pfsense to cisco from pfserne GUI.

and add custom config to squid as :
########### WCCP2 Config#############
wccp2_router xxxx
wccp2_rebuild_wait off 
wccp_version 2
wccp2_forwarding_method 1
wccp2_return_method 1
wccp2_assignment_method 1
wccp2_service standard 0

what else i need to work on pfsense ?

do i need other config ?

regards