Hi,

I'm using iptables for NAT on 5 networks at different locations.  I'm
using almost exactly the same rules at each location.  The only
difference being the ports that are opened.  4 of the 5 locations have
no problems and are functioning properly.

However, at the 5th location I'm seeing a slowdown when traffic passes
through the NATed box vs direct connection.  Each location is on a
fractional T1 line that the NATed box connects directly to.

All systems run Debian Woody with the default iptables package:
1.2.6a-5.  I am wondering if there is something I am doing wrong.  I
have tried totally replacing the NATed system, ethernet cards and,
ethernet cables and even the switch that connects all the systems.

Here's my iptables script,

Any help is appreciated,

Mike


IPTABLES script: