Load Balancing for Dual ISP (Internet Service Provider)

September 5, 2008 at 1:42 pm (General Information) ()

this is the file /etc/pf.conf, with decription above

in_if=”rl0″                               /*for internal network interface*/
ext_if0=”tun0″                        /*external interface 1 connect to modem ADSL*/
ext_if1=”tun1″                        /*external interface 2 connect to modem ADSL*/

ext_gw1=”125.163.xxxx.xxxx”       /*gateway, setup by ISP*/

priv_addr=”192.16.1.0/24″

nat on $ext_if0 from $priv_addr -> $ext_if0
nat on $ext_if1 from $priv_addr -> $ext_if1

pass out on $in_if from any to $priv_addr

/*syntaks for load balancing*/

pass in on rl0  route-to { (tun0 $ext_gw1), (tun1 $ext_gw1) } round-robin proto tcp from $priv_addr to any keep state

/*syntaks for load balancing*/

pass in on $in_if route-to { (tun0 $ext_gw1),(tun1 $ext_gw1) } round-robin proto {icmp,udp} from $priv_addr to any keep state

pass in on rl0 proto tcp from $priv_addr to any port 22 keep state
pass in on rl0 proto udp from any to any port 161 keep state

pass out on $ext_if0 proto tcp from any to any keep state
pass out on $ext_if0 proto {udp,icmp} from any to any keep state
pass out on $ext_if1 proto tcp from any to any keep state
pass out on $ext_if1 proto {udp,icmp} from any to any keep state

2 Comments

  1. dion said,

    September 12, 2008 at 11:13 pm

    itu gimana bro? pake sistem operasi apaan? linux, atau apa?thx.

    Reply

  2. qiuxer said,

    October 16, 2008 at 1:40 am

    untuk kasus ini, saya pakai system operasi OpenBSD 4.0,, :d

    terima kasih atas responsenya..

    Reply

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