I see some logs right when hickup occurs in cache.log of cache1 . In that time nothing logs in cache2 and vice versa in cache.log of cache2 . In that time nothing logs in cache1 -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/IpIntercept-cc-137-NetfilterInterception-NF-getsockopt-SO-ORIGINAL-DST-failed-on-FD-4125-2-No-such-fy-tp4662558p4662620.html Sent from the Squid - Users mailing list archive at Nabble.com.