I have a RH7.3  Freeswan gateway setup which is also my firewall (IPTABLES).
The
people on the LAN network (192.168.1.0) can get to the POP3 server out on
the Public internet.  But when I connect a client via the IPSEC (they are
static 10.2.67.0/8) tunnel then
I cannot get POP3 mail.  I can send mail.
This is what I have in my rc.firewall script to allow my LAN clients to get
their POP3 -
 
iptables -t nat -A POSTROUTING -p tcp --dport 110 -o eth0 -s 192.168.1.0/24
-j SNAT --to $external_ip

I tried adding this line for those coming in via VPN/ipsec

iptables -t nat -A POSTROUTING -p tcp --dport 110 -o eth0 -s 10.2.67.0/8  -j
SNAT --to $external_ip

This last line did not change anything.  I still cannot get mail when vpned
in.

Doug



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