Traceroute replies back with the IP of the interface closest to you.
Where your router's IP on the outside may be ".123", and because of NAT
the source for the email, traceroute is more than likely reporting the
next hop beyond that ".124", essentially the gateway for your router.
You should have also seen in your traceroute the internal IP of your
router. Does that help?
Cheers,
Mickey
-----Original Message-----
From: Fab Siciliano [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 12, 2001 11:14 AM
To: [EMAIL PROTECTED]
Subject: Work with techies that don't help you out.
Hey everyone. Terrible stuff goin on these days...let's hope we find a
solution to a all this chaos.
Ok, for the question. (This may be a stupid question BTW.)
Let's say I have a router. Doing NAT. When I send an email to another
office, the source ip is different from the IP I get when I do a
traceroute, and it leaves my network.
For instance. I send an email to [EMAIL PROTECTED] In his header,
it says that the Source address is 204.186.240.123. When I do a
traceroute to an external domain the address of the device when it
leaves my network, is 204.186.240.124.
Why would these addresses be different? Thanks
-Fab
