nanog mailing list archives
Re: NAT Configuration for Dual WAN Router
From: Rodney Dunn <rodunn () cisco com>
Date: Thu, 15 Dec 2005 14:24:11 -0500
On Thu, Dec 15, 2005 at 08:33:55AM -0600, eric wrote:
[ This is not a plug for a vendor, just operational experience ] On Thu, 2005-12-15 at 10:49:51 +0100, Peter Dambier proclaimed...I dont see how the router can NAT to more than one ip-address. So you need one NAT-router per DSL-line.I have some experience with the Xincom Twin WAN router. Basically, all it does is NAT RFC1918 address space (by default) and load balance stateless TCP traffic (ie. web traffic) over two outbound links. Established TCP sessions will not fail over, unfortunately, but the device is fairly reliable and does NAT-T fairly easy.
Interesting in that I was talking with a customer about something similar to that today. How can you do nat and failover but keep the existing TCP sessions alive. Given the two upstreams were doing uRPF we couldn't come up with a solution. Rodney
Sure, there's cheaper ways to do this solution without paying for a blackbox, but there's no moving parts in the device and thus is good for small offices that have no clue built-in. - Eric
Current thread:
- NAT Configuration for Dual WAN Router Joe Johnson (Dec 14)
- Re: NAT Configuration for Dual WAN Router Peter Dambier (Dec 15)
- Re: NAT Configuration for Dual WAN Router eric (Dec 15)
- Re: NAT Configuration for Dual WAN Router Rodney Dunn (Dec 15)
- Re: NAT Configuration for Dual WAN Router Crist Clark (Dec 15)
- Re: NAT Configuration for Dual WAN Router eric (Dec 15)
- Re: NAT Configuration for Dual WAN Router Peter Dambier (Dec 15)
- Re: NAT Configuration for Dual WAN Router Brian Kerr (Dec 15)
- Re: NAT Configuration for Dual WAN Router My Name (Dec 18)
- <Possible follow-ups>
- RE: NAT Configuration for Dual WAN Router Rossi, Jeremy (Dec 15)
- Re: NAT Configuration for Dual WAN Router Jason Chambers (Dec 15)
- RE: NAT Configuration for Dual WAN Router McLean Pickett (Dec 15)