Hi, I am looking for a Load balancing and fail-over setup. So I am working on below 2 subjects
How can I do equal-cost multipath routing? http://www.openbsd.org/faq/faq6.html Load Balance Outgoing Traffic http://www.openbsd.org/faq/pf/pools.html#outexample My first question is how to do failover when one link goes down? Can I do it with ping and ifstated ? If yes, How to ping external internet host when that link is DOWN? I find it difficult? I tried it with below commands ping -I WAN1_if_ip www.google.lk ping -I WAN2_if_ip www.google.lk Some times it works? some times it does NOT? Could you pls explain why? If it does NOT ping, How to do failover? So, Now, I am trying with snmpwalk command. I think it is OKAY? your comments? I found a URL here? http://old.nabble.com/Re:-ifstated-and-ping-p15546523.html Then, the other question is that when loadbalancing works as expected , I will have to send https via one link as described in Openbsd site. Pls see below. http://www.openbsd.org/faq/pf/pools.html#outexample # keep https traffic on a single connection; some web applications, # especially "secure" ones, don't allow it to change mid-session pass in on $int_if proto tcp from $lan_net to port https \ route-to ($ext_if1 $ext_gw1) Then, If that link goes down, when, failiver happnes, How to send that https traffic via other link? I think delete that rule and add another rule like this? am I right? pass in on $int_if proto tcp from $lan_net to port https \ route-to ($ext_if2 $ext_gw2) If I am right, How to delete the existing rule and add other rule when failover happens? Hope to hear from you. -- Thank you Indunil Jayasooriya
