Hi all,
I have 2 adsl connection... and i decided to do loadbalancing with pf on
openbsd 3.4.... and i have the following pf.conf rules...
=======================================================
lan_net = "192.168.0.0/24"
int_lan = "vr0"
ext_if1 = "dc0"
ext_if2 = "dc1"
ext_gw1 = "192.168.10.254"
ext_gw2 = "192.168.20.254"
# 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
# load balance outgoing tcp traffic from internal network.
pass in on $int_lan route-to \
{ ($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 $int_lan route-to \
{ ($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
# pass all outgoing packets on internal interface
pass out on $int_lan from any to $lan_net
# pass in quick any packets destined for the gateway itself
pass in quick on $int_lan from $lan_net to $int_lan
================================================================
everything is working well... only problem is that i cant seem to ping from
the gateway/firewall itself.. but the clients on the internal lan... can
connect to the internet... problem is that i want to install squid on my
firewall/gateway box... and since i cant connect to the internet from my
firewall/gateway... squid doesnt function... can anybody please help me...
regards,
iak taala
