ipsec drops packets with size > ~300 on lucid with 2.6.35
upgraded from standard 2.6.32 kernel to
linux-headers-virtual-lts-backport-maverick (2.6.35).
under 2.6.35, ipsec fails to process any packets with size > ~300 bytes. this was tested for pings, udp, and tcp traffic. also tested were different encryption / authentication schemes, including null schemes.
ifconfig doesn't show any errors, and tcpdump shows esp/ah packets arriving at eth0, but disappearing after that. i was unable to find any logs or stats to indicated where the packets were going.
it was only receiving packets that dissapeared. i was able to send esp/ah packets as normal bytes.
i ended up reverting back to 2.6.32 after trying for several days to diagnose the problem. everything is working again under 2.6.32.
any thoughts? … kernel bug?
1 Reply
I don't see any relevant bugs specific to that packagebig Ubuntu kernel bug list