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Hi !

I have strange problem with forwarding pop3/smtp over ipf/ipnat.
NetBSD 1.6.2, default hernel ipf-3.4

There is a fwall:
fxp0 - external ( public internet )
fxp1 - internal 

ipnat.conf
except standard mappings is a line :


rdr fxp0 0.0.0.0/0 port 25 -> 10.10.0.214 port 25 tcp

ipf.conf

pass in quick on fxp0 proto tcp from any to any port = 110  flags S/SA keep state keep frags

Fwall by default is blocking everything.

tested the same way with other ports/daemons, works fine (22, 501, 80 ), just does'nt work with pop3/smtp

10.10.0.214 mail server, widely open, no restrictions on ports 110 or 25.

Any ideas ?

Regards

Peter 


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