[squid-users] Protocol not available

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
Received on Sat Feb 03 2007 - 17:43:16 MST