Am 15.11.2013 04:43, schrieb Mihamina RKTMB: > Hi, > > At office, we have I ISPs. > > I want to lightly monitor each link latency in order to decide several > routing. > For that, I have only one external server: 1 IP, it's an OVH dedicated > server. > The quick picture is http://s24.postimg.org/n3436z64l/defaul_route.png > > Default route is via ISP1. > If OVH-server pings IP1: > - the request will go through ISP1: it's OK > - the reply will go through ISP1: it's OK > > If OVH-server pings IP2: > - the request will go through ISP2: it's OK > - the reply will go through ISP1: it's KO because the metric will > involve ISP1 > > How could I tell the Office gateway (CentOS 6) > "IF you reply to a ping request from the OVH server that came on IP2 > THEN route it via IP2" You may study http://www.lartc.org/lartc.html to find out how to handle 2 uplinks. Alexander
