Re: Odd mac address behavior useing arping

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	Hello,

On Thu, 25 Jul 2002, Justin Booth wrote:

> Actually I need to have the ip traffic for the 192.168.2.0/24 network, I
> just don't want the 192.162.2.0/24 network to be able to find the
> 192.168.3.0/24 network.  Consider the 192.168.2.0 network to be a network

	I think, we will not stop the traffic to 192.168.2.0/24

> where most of my company sits, on the 192.168.3.0 network is our sensitive
> accounting network..... I need to be able to talk to both sides, and not
> have the 192.168.2.0/24 network be able to discover the 192.168.3.0/24
> network.

	You will talk always with IP from the proper subnet.

> > # subnet 192.168.3.0/24 does not like 192.168.2.0/24:
> > ip rule add prio 100 from 192.168.3.0/24 to 192.168.2.0/24 blackhole
> >
> > # make the above to happen
> > echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
> > echo 1 > /proc/sys/net/ipv4/conf/eth0/rp_filter
>
> I tried this anyway and got the response of :
> RTNETLINK answers: Invalid argument

	Time to compile new kernel, may be you need:

CONFIG_IP_ADVANCED_ROUTER (IP: advanced router)
CONFIG_IP_MULTIPLE_TABLES (IP: policy routing)

> Justin Booth

Regards

--
Julian Anastasov <ja@ssi.bg>

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