Re: routing within the same network? is it possible?

[Martin Volf <mv@xxxxxx>]

Victor Catten wrote:
> Hello,
> > Is routing within the same network possible?
> If it is, what configuration should I put for the firewall/router shown
> below? I basically want the host debian13 to be able to send packets via
> a multi-homed firewall. I think the multi-homed firewall involve some
> routing.
> +-------------------+
> |debian13           |
> |eth0:192.168.0.13  |
> +-------------------+
>          |eth0
>          |
>          |eth0
> +--------------------------+
> |firewall/router(linux-box)|
> |which configuration here? |
> +--------------------------+
>          |eth1
>          |
>          +----------------------+
>          |                      |
>          |eth0                  |eth0
> +-------------------+  +-------------------+
> |eth0:192.168.0.15  |  |eth0:192.168.0.16  |
> |debian15           |  |debian16           |
> +-------------------+  +-------------------+

Hello,

see http://lartc.org/howto/lartc.bridging.proxy-arp.html or try this:

on router:

ifconfig eth0 192.168.0.1 netmask 255.255.255.255 -broadcast
ifconfig eth1 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255
route add -host 192.168.0.13 device eth0
echo 1 >/proc/sys/net/ipv4/conf/eth0/proxy_arp
echo 1 >/proc/sys/net/ipv4/conf/eth1/proxy_arp
echo 1 >/proc/sys/net/ipv4/ip_forward

on debianXY:
ifconfig eth0 192.168.0.XY netmask 255.255.255.0 broadcast 192.168.0.255

HTH,

--
Martin

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