relayd can do this i think. On 26/08/2010, at 9:10 AM, dontek wrote:
> Jacob Yocom-Piatt wrote: >> Don Tek wrote: >>> I've recently implemented a firewall with two internet connections >>> using multipath routing and round-robin outbound load balancing. >>> >>> I am looking for a solution from the shell to detect failure of these >>> two internet gateways so I can force routing and pf changes from a >>> script. >>> >>> I need something more robust than simply checking to see if the >>> interface is up or down. >>> >>> I have managed a solution using traceroute that allows me to >>> accomplish half of my goal. I can detect a failure and "down" that >>> route, however, once I delete the default route from the routing table >>> for the failed connection, I can no longer test it with traceroute. >>> This is because it doesn't appear to me that OpenBSD's traceroute >>> allows forcing an interface to work on. >>> >>> I am looking for better solutions from some of you more experienced >>> users. Any suggestions are welcome. >> >> ifstated > > > As stated, I need something more robust than simple link state testing. I > realize ifstated can utilize external tests, an example of an one of these > external tests is what I'm looking for.
