on amd64 tcp4 cksums are bad (FYI)

Sean McNeil sean at mcneil.com
Fri Aug 20 20:03:19 PDT 2004


>When connecting to the same host from the same client just via tcp4,
>all is not quite so good:

I have an re0 NIC on my amd64 and I've found that txcsum is broken for
it.  Others have found this also and I believe it is not NIC-specific. 
Could you look to see if your nic has it turned on and try turning it
off with ifconfig and see if it makes a difference?


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