I have a cable modem connected to a linux box that is performing NAT from my
invalid home network of 172.16.1.0/24 to my valid IP address 209.160.20.67.
The 172.16.1.0 network is going into a small inexpensive hub. This setup
has worked for about a year.
A few days ago, I needed to do some things on the linux box. When I hooked
everything back up my internet access was horrid. Found the following:
If I ping from 172.16.1.98 (my PC) to the following addresses:
172.16.1.1 (PC's Default GW, E1 interface on Linux box)
0% Packet Loss
209.160.20.67 (E0 Linux IP address and address PC is being NATed to) 0%
Packet loss
209.160.20.1 (GW of Linux Box)
70% Packet Loss
If I ping from the Linux box I see no packet loss to 172.16.1.98 or
209.160.20.1. So I can now deduce the connection between the Linux box and
the default GW is clean.
But something is occuring with the NAT translations that causes 70% packet
loss through the box.
Ok, so here is the puzzling thing. If I remove the hub and use a crossover
cable between the PC and Linux box the address which is problamatic
209.168.20.1 receives no packet loss when pinging from the PC - hence fixing
the problem.
So in other words, removing the hub on the 172.16.1.0 network fixes the
connection at 209.168.20.1 ?!?
Any ideas?
Paul Borghese
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=6922&t=6922
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