Re: pinging through IPMASQ

[Jeff Mayrand <jmayrand@xxxxxxxxxxxxx>]

At 07:42 AM 10/28/99 -0400, you wrote:
>You can't ping a device outside your private network if you have network
>address translation in use (IPMasq). If I'm not mistaken (and I could be),
>you are sending the ICMP packet out, but the server responding to the ping
>can't send the reply to your PC behind the NAT. It thinks your IP address

Not true, I use NAT every day for translation and I am able to ping servers
outside 
the local 192.168 subnet.

>is that of your IPMasq box, so it stops there. I don't think traceroute
>(tracert?) or any other util that depends on ICMP will work outside your
>private network either. 
>
>In short, you can ping any device on your private network, but not on the
>outside, if you are using network address translation (IPMasq). 
>
>At 05:53 PM 10/27/1999 -0400, you wrote:

Im not too familiar with IPMasq within linux.  But could it be that some
type of 
IP Forwarding is not configured?   Maybe the pings are getting stopped at his
gateway and not forwarding across the local subnet on return.



						Jeff Mayrand
						"And heres another 2 cents"