[stable-9]

[Sean Bruno]

> > What am I missing here?
> >
> 
> Did you try to use ipfw instead of RADIX_MPATH?
> 
> Try something like this:
> 
> route add default $router -interface $if1
> ipfw add $number fwd $router ip from $ip2 to any out via $if2
> 

I think I've configued lagg(4) into doing what I really want, which is
bind two interfaces together and balance the traffic in and out:

kernelconf:
device lagg

rc.conf
cloned_interfaces="lagg0"

ifconfig commands:
ifconfig igb0 up
ifconfig igb1 up
ifconfig lagg0 laggproto loadbalance laggport igb0 laggport igb1
xxx.xxx.xxx.22/24
ifconfig lagg0 xxx.xxx.xxx.220/32 alias
ifconfig lagg0 xxx.xxx.xxx.221/32 alias
ifconfig lagg0 xxx.xxx.xxx.222/32 alias
ifconfig lagg0 xxx.xxx.xxx.223/32 alias
route add default xxx.xxx.xxx.1

That results in something that looks like what I wanted, which was rx/tx
shared across two interfaces on the same network with:

-bash-4.2$ netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags    Refs      Use  Netif
Expire
default            xxx.xxx.xxx.1        UGS         0 37835052  lagg0
xxx.xxx.xxx.0/24     link#4             U           0 467322219  lagg0
xxx.xxx.xxx.22       link#4             UHS         0        0    lo0
xxx.xxx.xxx.220      link#4             UHS         0        0    lo0 =>
xxx.xxx.xxx.220/32   link#4             U           0        0  lagg0
xxx.xxx.xxx.221      link#4             UHS         0        0    lo0 =>
xxx.xxx.xxx.221/32   link#4             U           0        0  lagg0
xxx.xxx.xxx.222      link#4             UHS         0        0    lo0 =>
xxx.xxx.xxx.222/32   link#4             U           0        0  lagg0
xxx.xxx.xxx.223      link#4             UHS         0        0    lo0 =>
xxx.xxx.xxx.223/32   link#4             U           0        0  lagg0
127.0.0.1          link#3             UH          0        0    lo0

bash-4.2$ ifconfig
igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
        ether 60:eb:69:07:e1:8a
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
igb1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
        ether 60:eb:69:07:e1:8a
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=3<RXCSUM,TXCSUM>
        inet6 ::1 prefixlen 128 
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 
        inet 127.0.0.1 netmask 0xff000000 
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500

options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
        ether 60:eb:69:07:e1:8a
        inet xxx.xxx.xxx.22 netmask 0xffffff00 broadcast xxx.xxx.xxx.255
        inet6 fe80::62eb:69ff:fe07:e18a%lagg0 prefixlen 64 scopeid 0x4 
        inet xxx.xxx.xxx.220 netmask 0xffffffff broadcast
xxx.xxx.xxx.220
        inet xxx.xxx.xxx.221 netmask 0xffffffff broadcast
xxx.xxx.xxx.221
        inet xxx.xxx.xxx.222 netmask 0xffffffff broadcast
xxx.xxx.xxx.222
        inet xxx.xxx.xxx.223 netmask 0xffffffff broadcast
xxx.xxx.xxx.223
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect
        status: active
        laggproto loadbalance
        laggport: igb1 flags=4<ACTIVE>
        laggport: igb0 flags=4<ACTIVE>