[87390] in North American Network Operators' Group
RE: NAT Configuration for Dual WAN Router
daemon@ATHENA.MIT.EDU (McLean Pickett)
Thu Dec 15 17:26:03 2005
Date: Thu, 15 Dec 2005 17:25:39 -0500
From: "McLean Pickett" <McLean.Pickett@ptgcorp.com>
To: "Joe Johnson" <nanog@sendjoeanemail.com>, <nanog@merit.edu>
Errors-To: owner-nanog@merit.edu
Joe -
Linux can do this, check out:
http://www.lartc.org/
More specifically:
http://www.lartc.org/howto/lartc.rpdb.multiple-links.html and
http://www.ssi.bg/~ja/#routes
I am working on a redhat project that requires QoS over multiple VLAN's.
I was reading up on tc and imq devices when I came across this
information. Haven't tried this config, but it look like it should do
what you want.
McLean
-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of
Joe Johnson
Sent: Wednesday, December 14, 2005 8:44 PM
To: nanog@merit.edu
Subject: NAT Configuration for Dual WAN Router
I've been trying over and over to figure this one out, but I'm just
hitting the end of my wits. We have a remote office that can only get
768Kbps DSL, which they've not totally maxed out. So management's
solution now is to buy a second DSL line, but they won't let me buy a
dual WAN router (in case they add a 3rd DSL line).
=20
I've found some great articles on how to get the interfaces working with
2 default gateways (I used this:
http://www.linuxquestions.org/linux/answers/Networking/Spanning_Multiple
_DSL
s) and that is all running fine. It alternates every few minutes which
WAN port is used when I traceroute yahoo.com (which is fine) and
everything is connecting fine from the router. However, I can't figure
out how to get NAT running on the server for the 2 WAN ports for clients
inside the LAN. I can NAT to 1 DSL, but that is useless.
=20
What I am looking for is a tutorial in how to do this or a pointer to
someone who can help. Anyone know of a resource for this?
=20
=20
=20
Joe Johnson
joe@sendjoeanemail.com
