I am running Squid2.6STABLE9 as transparent proxy. What do these error messages mean? 2007/02/03 17:09:41| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (92) Protocol not available 2007/02/03 17:14:43| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (92) Protocol not available 2007/02/03 17:19:45| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (92) Protocol not available 2007/02/03 17:24:47| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (92) Protocol not available 2007/02/03 17:27:18| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (92) Protocol not available 2007/02/03 17:29:49| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (92) Protocol not available 2007/02/03 17:34:52| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (92) Protocol not available Sometimes some clients just quit working for few minutes and I notice these errors in cache.log. Matt