hi why you not try the relayd way ? look at http://gouloum.fr/doc/multilink.html
the part with relayd holger > On 2012/05/17 13:20, Indunil Jayasooriya wrote: >> >> >> Route lookups are based on the *destination* address not the source >> address, you could add a route for a certain destination via a >> certain interface to send packets out that way. >> >> >> Hmm. that sounds good to me. Since I have 2 interfaces for 2 different >> WAN connections. It is possible to add route to a certain destination >> ip address in /etc/hostname.em0 and /etc/hostname.em1 files and make >> permanent in this way. >> >> >> /etc/hostname.em0 >> >> inet 192.168.10.6 255.255.255.0 >> !route add -host 173.194.38.184 192.168.10.5 >> !route add -mpath default 192.168.10.5 >> >> >> /etc/hostname.em1 >> >> inet 192.168.20.6 255.255.255.0 >> !route add -host 173.194.38.191 192.168.20.5 >> !route add -mpath default 192.168.20.5 >> >> >> Then, a shell script in crontab can ping those destination ip >> addresses and see if they are UP or DOWN. ( ifstated also can do it. >> But, I will have to understand its behaviour ) >> >> >> When , both are up Up, nothing is DONE and when one fails remove that >> -mpath default route >> >> In this manner, When one link goes down, all traffic will go via the >> available link. >> >> That is what I am looking for. I think I am right. >> >> I am right ain't I? > > Yes I think this is what you're looking for. > > >> Then, I will have to discuss this below rule as well. >> >> >> pass in on $int_if from $lan_net \ >> route-to { ($ext_if1 $ext_gw1), ($ext_if2 $ext_gw2) } \ >> round-robin >> >> >> When one link goes DOWN, Will all the traffic go via the available link >> ? >> >> Does the above rule do this duty? > > No, your script or ifstated config will need to adjust this rule, > you can do this by using a macro to write the rule, something like this: > > GATEWAYS="1.1.1.1@em0 2.2.2.2@em1" > pass in on $int_if from $lan_net route-to { $GATEWAYS } > > This helps because you can override the macro on the pfctl command line, > so you can use something like to reload the ruleset with your choice > of gateway: > > pfctl -D GATEWAYS="1.1.1.1@em0" -f /etc/pf.conf > pfctl -D GATEWAYS="2.2.2.2@em1" -f /etc/pf.conf > pfctl -D GATEWAYS="1.1.1.1@em0 2.2.2.2@em1" -f /etc/pf.conf > > While you're testing, use "pfctl -v ..." if you would like to check > how the parsed rules look. > >> >> I think I am getting closer to achieve the goal. >> >> Hi, Stuart Henderson, Many thanks to your effort that put forth me to >> go ahead, >> >> >> Hope to hear from ALL. >> >> >> >> >> >> >> >> -- >> Thank you >> Indunil Jayasooriya