On Wed, Apr 06, 2005 at 02:14:24PM -0500, Taylor, Grant wrote: > You might try Equal Cost Multi-Path (ECMP) routing. That will have me send out packets with source A to ISP B and vice versa which will have the packets killed by the ISPs reverse path filters. > Give this a shot and see what happens. I don't need to try this, it will end up with pretty much exactly 50 % packet loss. > You will just need to make sure that you do something like the following in > your nat / POSTROUTING chain: > > iptables -t nat -A POSTROUTING -o <dev of ISP B> -j SNAT --to-source > 172.16.0.129 > iptables -t nat -A POSTROUTING -o <dev of ISP A> -j SNAT --to-source > 10.0.0.1 This will NAT the first, third, fifth packet of a TCP session to 172.16.0.129 and the second, fourth and sixth packet of the same session to 10.0.0.1. I seriously doubt that the session will come up at all. I am either completely missing the poing or your suggestion is making things worse. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Mannheim, Germany | lose things." Winona Ryder | Fon: *49 621 72739834 Nordisch by Nature | How to make an American Quilt | Fax: *49 621 72739835
