Extended VLAN?

krad kraduk at googlemail.com
Wed Apr 14 08:06:28 UTC 2010


On 13 April 2010 23:04, Dan D Niles <dan at more.net> wrote:

> I have two FreeBSD routers.  I would like both locations to share the
> 10.10.0.0/16 network.  If I were using Cisco routers I would use
> extended VLANs.  How would I do that with FreeBSD routers?
>
> I already have a tunnel set up and routing different networks in the
> 192.168.0.0/16 range.
>
> Router A:
>
> ifconfig em2 inet 192.168.1.1 netmask 255.255.255.0
> ifconfig gif0 create 192.168.1.1 192.168.2.1 netmask 255.255.255.0 tunnel
> <routerA> <routerB>
> route add 192.168.2.0/24 129.168.2.1
>
> Router B:
>
> ifconfig em2 inet 192.168.2.1 netmask 255.255.255.0
> ifconfig gif0 create 192.168.2.1 192.168.1.1 netmask 255.255.255.0 tunnel
> <routerB> <routerA>
> route add 192.168.1.0/24 129.168.1.1
>
> This routes traffic between 192.168.1.0/24 and 192.168.2.0/24 as I would
> expect.
>
> The docs say I can use a tunnel with a bridge, which seems like it would
> do what I want.
>
> Router A:
>
> ifconfig em3 inet 10.10.1.1 netmask 255.255.0.0
> ifconfig bridge0 create addm em3 addm gif0
>
> Router B:
>
> ifconfig em3 inet 10.10.2.1 netmask 255.255.0.0
> ifconfig bridge0 create addm em3 addm gif0
>
> I cannot ping 10.10.2.1 from router A or 10.10.1.1 from router B.
>
> Should I be able to use a bridge this way?  Am I missing some piece?
>
> Is there an easier/better way to extend a VLAN with FreeBSD routers?
>
> Thanks!
>
> Dan
>
>
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it sounds stupid but is the bridge up?

ie do a ifconfig bridge0 up


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