On 8/02/2016 9:27 PM, Alexey Roslyakov via freebsd-net wrote:
08.02.2016 12:30, Kiryanov Vassily пишет:
Hello Alexey,
Thank you for this information, I have thoughts about using pf nat as
an alternative way and your example will be useful for me.
But Eugene Grosbein adviced me to turn off tso4 on network card
underlaying my VLANs and it was enough to solve problem with port
redirection. Without turning tso4 off ipfw + in-kernel NAT works
fine but port redirection fails.
Thank you. It's my mistake - was confused by home gateway, where
redirect_port worked perfectly (NIC without TSO support), and there
is a notice in section BUGS of ipfw(8) about incompatible libalias
and TSO.
so why are you using libalias?
I may have misread what you are doing but IP masquerading might work
better. (ipfw fwd rule with local destination)
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