FreeBSD routing

[Björn König]

Bob Hepple wrote:
> [...]
> I just want to add an arbitrary machine (eg. with IP 192.168.2.214) to my
> home network 192.168.254.0/24. Under Linux I just do a 
> 
> 	route add -host 192.168.2.214 eth0
> 
> and I can ping it.
> 
> On FreeBSD I tried both
> 
> 	route add -host 192.168.2.214 192.168.254.245
> 	route add -host 192.168.2.214 -interface rl0
> 
> but I'm getting some kind of redirect loop. Apparently my use of the
> FreeBSD route command is wrong.
> 
> [...]
> 
> Here's the detail: I'm issuing the "route add" commands on "raita" and
> trying to reach "rasam":
> 
>       internet
>         |
>       router
>         .192.168.0.1
>         .
>         .  wireless 
>         .
>         .ath0/192.168.0.18
>       raita
>         |rl0/192.168.254.245
>         |
>     -------------------------- 10baseT
>                            |
>                            |
>                            |192.168.2.214
>                          rasam
> 
> bash-2.05b# ifconfig -a
> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         options=8<VLAN_MTU>
>         inet 192.168.254.245 netmask 0xffffff00 broadcast 192.168.254.255
>         inet6 fe80::201:29ff:fe74:99c2%rl0 prefixlen 64 scopeid 0x1 
>         ether 00:01:29:74:99:c2
>         media: Ethernet autoselect (none)
>         status: no carrier
> ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         inet 192.168.0.18 netmask 0xffffff00 broadcast 192.168.0.255
>         inet6 fe80::209:5bff:fee8:b9d2%ath0 prefixlen 64 scopeid 0x3 
>         ether 00:09:5b:e8:b9:d2
>         media: IEEE 802.11 Wireless Ethernet autoselect (OFDM/54Mbps)
>         status: associated
>         ssid Baroona 1:Baroona
>         channel 6 authmode OPEN powersavemode OFF powersavesleep 100
>         rtsthreshold 2312 protmode CTS
>         wepmode MIXED weptxkey 1
>         wepkey 1:40-bit
> 
> [...]

Hello Bob,

welcome to FreeBSD.

I won't expect that this will work at all, even not with Linux, because 
the IP 192.168.254.245 and 192.168.2.214 are of different subnets. 
Either you use 192.168.254.0/24 or 192.168.2.0/24 in the 10baseT net, 
but not both. I don't know if Linux makes it possible to do this; I 
haven't tried it yet. At least I can reproduce your error message with a 
similar setup. Just assign the IP 192.168.2.245 to rl0 for example; then 
it should work without problems.

Regards
Björn