Hi All, I was wondering if someone can shed some light on cache peers with a sibling relationship? I have 3 x squid boxes (running 3.1.15) for my web proxy (WP01,WP02,WP03) and am wanting to setup a sibling relationship between them. The following is an example config I have on WP01: icp_access allow local_network icp_access deny all cache_peer wp02.example.com sibling 8008 3130 proxy-only cache_peer wp03.example.com sibling 8008 3130 proxy-only The access.log reveals the caches are sending ICP queries, however I am getting the following problem: 1315349802.582 0 192.168.1.88 UDP_DENIED/000 40 ICP_QUERY http://ebay.com.au/ - NONE/- - And also this in the cache.log file: 2011-09-07 08:29:13.763654500 2011/09/07 08:29:13| 95%% of replies from ' wp02.example.com' are UDP_DENIED 2011-09-07 08:29:13.763656500 2011/09/07 08:29:13| Disabling ' wp02.example.com', please check your configuration. It appears I am missing some configs regarding icp or peer access? Cheers, JLK