Dear respected sir/s,
How can I mangle all forwarded packets on freebsd/pf/ipfw/ stamping them
with a hard set MSS like 512, I need to clamp my mss on the freebsd
forwarder/router because of gre tunnels breaking MTUPD for extranet
clients, and some sites like yahoo/hotmail will often not work.
What function in freebsd/pf/ipfw will allow me to tag all my
packets/connections with MSS=512 as I foward them or as they come in or
out of an interface. That would be cool if the OS offered a sysctl
overide.
Linux iptables equivilent of
iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS
--clamp-mss-to-pmtu
or
iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 512
Daniel Hartmeier wrote:
The problem turned out to be in ipfilter, for more details see
http://marc.info/?l=freebsd-net&m=133888532814565
Daniel
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