Date: Wed, 22 Dec 2004 14:20:40 -0500 From: "Paul J. Pathiakis" <pathiaki@pathiaki.com> To: freebsd-pf@freebsd.org Subject: Re: Does the outgoing balance example work? Message-ID: <200412221420.40575.pathiaki@pathiaki.com> In-Reply-To: <200412221412.00770.pathiaki@pathiaki.com> References: <200412221412.00770.pathiaki@pathiaki.com>
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BTW, I should mention that this is load balancing. According to my logs, traffic is going out both interfaces.... it's just not coming back. P. On Wednesday 22 December 2004 14:12, Paul J. Pathiakis wrote: > Hi, > > I'm trying to get pf to load balance outgoing on two outbound lines (cable and dsl). > My pf.conf is based on the example from the pf faq at www.openbsd.org. I've changed > parameters to match my machine and I still can't get it to load balance outgoing > connections on my machine. As soon as I enable the route-to rules for balancing, my > web browser stops working and quite a few other utilities stop working. It connects > to the site but the response never comes back. Is it possible that nat isn't working > correctly? Is it possible that the return addresses aren't getting correctly set? > How do I troubleshoot this? The example (below) seems pretty straight forward. > I've enabled my pflog (made sure every filter is logging). > I can check states with pfctl commands. I just can't see what's wrong. Is there anything > that I'm missing (Please note that I changed the "default block all" to pass in all and pass > out all. > > thanks! > > Paul P. > > lan_net = "192.168.0.0/24" > int_if = "dc0" > ext_if1 = "fxp0" > ext_if2 = "fxp1" > ext_gw1 = "68.146.224.1" > ext_gw2 = "142.59.76.1" > > # nat outgoing connections on each internet interface > nat on $ext_if1 from $lan_net to any -> ($ext_if1) > nat on $ext_if2 from $lan_net to any -> ($ext_if2) > > # default deny > #block in from any to any > #block out from any to any > pass in from any to any > pass out from any to any > > # pass all outgoing packets on internal interface > pass out on $int_if from any to $lan_net > > # pass in quick any packets destined for the gateway itself > pass in quick on $int_if from $lan_net to $int_if > > # load balance outgoing tcp traffic from internal network. > pass in on $int_if route-to \ > { ($ext_if1 $ext_gw1), ($ext_if2 $ext_gw2) } round-robin \ > proto tcp from $lan_net to any flags S/SA modulate state > # load balance outgoing udp and icmp traffic from internal network > pass in on $int_if route-to \ > { ($ext_if1 $ext_gw1), ($ext_if2 $ext_gw2) } round-robin \ > proto { udp, icmp } from $lan_net to any keep state > > # general "pass out" rules for external interfaces > pass out on $ext_if1 proto tcp from any to any flags S/SA modulate state > pass out on $ext_if1 proto { udp, icmp } from any to any keep state > pass out on $ext_if2 proto tcp from any to any flags S/SA modulate state > pass out on $ext_if2 proto { udp, icmp } from any to any keep state > > # route packets from any IPs on $ext_if1 to $ext_gw1 and the same for > # $ext_if2 and $ext_gw2 > pass out on $ext_if1 route-to ($ext_if2 $ext_gw2) from $ext_if2 to any > pass out on $ext_if2 route-to ($ext_if1 $ext_gw1) from $ext_if1 to any > > _______________________________________________ > freebsd-pf@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-pf > To unsubscribe, send any mail to "freebsd-pf-unsubscribe@freebsd.org" >
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