forwarding groupwise live remote services

["Stephen Lawrence Jr." <slawrence@ucdavis.edu>]

Hi all, I am having a problem forwarding groupwise live remote services 
from my firewall->groupwise mta.

The setup:

remoteuser -> Firewall:1678 -> Groupwiseserver:1679
Groupwiseserver:1679 -> MASQ -> remoteuser

Here is what I have so far:
<snip>

$IPTABLES -t nat -A POSTROUTING -o eth0  -s 192.168.0.0/16 -j SNAT 
--to-source $EXTIP

# Port Forward - Send port 1678 to grpws-server:1679 for Groupwise Live 
Remote Services
$IPTABLES -t nat -A PREROUTING  -p tcp   --destination-port 1678 -j DNAT 
--to-destination 192.168.1.254:1679

$IPTABLES -A OUTPUT -p tcp -m multiport --destination-ports 
8080,25,465,22,80,443,515,1679,1678 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -p tcp -m multiport --destination-ports 
8080,25,465,22,80,443,515,1679,1678 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -p tcp -m multiport --destination-ports 
8080,25,465,22,80,443,515,1679,1678 -m state --state NEW -j ACCEPT
<snip>

What am I missing?

-- 
Stephen Lawrence Jr. - Programmer
slawrence@ucdavis.edu
California Animal Health & Food Safety Laboratory System, UC Davis 
(530)-752-4614