i am trying to get ip port forwarding working
my enviroment Exchange 5.5 + proxy on ip 192.168.100.2
My linux connection box 192.168.100.1
ppp conection static ip - 200.200.200.200 (eg)
i am currently running Redhat 6.2 - 2.2.14-5
my config
ipchains -F
ipchains -M -S 7200 120 120
ipchains -P forward DENY
ipchains -A forward -i ppp0 -j MASQ
echo 1 > /proc/sys/net/ipv4/ip_forward
/usr/sbin/ipmasqadm portfw -a -P tcp -L 200.200.200.200 25 -R 192.168.100.2
25
/usr/sbin/ipmasqadm portfw -a -P tcp -L 200.200.200.200 110 -R 192.168.100.2
110
/usr/sbin/ipmasqadm portfw -a -P tcp -L 200.200.200.200 119 -R 192.168.100.2
119
/usr/sbin/ipmasqadm portfw -a -P tcp -L 200.200.200.200 143 -R 192.168.100.2
143
My problem is that i keep getting errors from users sending mail to my
exchange server, about 50% fail with this message.....
------Transcript of session follows -------
[EMAIL PROTECTED]
Remote connection was abruptly disconnected.
the line seems to be fine it does not disconnect.. telnet to the box from
outside works fine no drop outs, if i connect with pcanywhere to the
exchange box i keep getting timeouts (i do portfw on the approprite
pcanywhere ports)...
i think the problem is with the ipmasqadm portfw routine.... as the ipchains
section seems to work without a hicup.....
please HELP!!!!!!
Thanks Geoff Gauci
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