Hello Floks , i have squid ACL/TCP Outgoing based on incoming header . as an example below : acl requestheader5000 req_header X-Proxy 1.2.3.4 acl requestheader5001 req_header X-Proxy 1.2.3.5 acl requestheader5002 req_header X-Proxy 1.2.3.6 acl requestheader5003 req_header X-Proxy 1.2.3.7 ######################### tcp_outgoing_address 1.2.3.4 requestheader5000 tcp_outgoing_address 1.2.3.5 requestheader5001 tcp_outgoing_address 1.2.3.6 requestheader5002 tcp_outgoing_address 1.2.3.7 requestheader5003 So if an incoming request with X-Proxy header 1.2.3.4 , it will match the Acl requestheader5000 and will have outgoing address as 1.2.3.4 . ——> no problem here . Now Say the incoming X-Proxy header was 9.9.9.9 which is a value not matched in the current ACL . How can we let squid to send those Type of requests “ not match with ACL “ to remote Cache peer squid in case not “ matched X-proxy header” ? Thanks _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users