Maybe i should describe more . The port 8080 is a parent peer of squid . It is http://squid-web-proxy-cache.1019090.n4.nabble.com/Windows-Updates-a-Caching-Stub-zone-A-windows-updates-store-td4678454.html squid config is acl wu dstdom_regex \.download\.windowsupdate\.com$ acl wu-rejects dstdom_regex stats acl GET method GET cache_peer 127.0.0.1 parent 8080 0 proxy-only no-tproxy no-digest no-query no-netdb-exchange name=ms1 cache_peer_access ms1 allow GET wu !wu-rejects cache_peer_access ms1 deny all never_direct allow GET wu !wu-rejects never_direct deny all and iptables -t mangle -A OUTPUT -p tcp -m tcp -d 127.0.0.1,192.168.1.1,192.168.1.2 --sport 8080 -j DSCP --set-dscp 0x60 Now with this iptables rule i want to change the dscp of packets which comes from parent peer to squid . Then squid preserve that dscp and send it to clients . With my description will everything work as i want ? Thanks -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/cache-peer-communication-about-HIT-MISS-between-squid-and-and-non-squid-peer-tp4600931p4678547.html Sent from the Squid - Users mailing list archive at Nabble.com. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users