I have never done this myself so take with a pinch of salt... though I somewhat know little bit of using shorewall and little bit about configuring a firewall hardware.
use shorewall and modify the scripts to periodically ping the external interfaces.. if no response is obtained within the (programmable) time period, you switch the traffic to appropriate (failover) link. (That's how proprietary firewalls work anyway) and Let shorewall do the load balancing.. while both ISP links are up... this might be an easier approach.. than the other one... -- ______________________________________________________________________ Pune GNU/Linux Users Group Mailing List: ([email protected]) List Information: http://plug.org.in/cgi-bin/mailman/listinfo/plug-mail Send 'help' to [EMAIL PROTECTED] for mailing instructions.
