Help With Building a Smart Relay [keywords: repeater, wireless to wireless bridge, range extender.]

[Jean-Nicolas Bes]

On Fri, 11 Apr 2003, Phill Kenoyer wrote:

> I'm sorry if this has been covered before.  I have gone over all the
> archives and could not find reference to it.
>
...
> client to the server or the server to the client.  I'm not doing
> NAT/MASQ.  I know that its a routing problem, but I'm not sure how to
> fix it.  I've tried to bridge the two wireless cards, but that does not
> work.  Maybe its a IP Tables forward rule or something.  I have been
> searching the net for an answer, but I can not find one.

try this in ip router mode on the repeater:

echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -F
iptables -F INPUT
iptables -F OUTPUT
iptables -F FORWARD
iptables -F -t mangle
iptables -t mangle -X
iptables -F -t nat
iptables -t nat -X
iptables -X
iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT
iptables -P FORWARD ACCEPT

it should open the forwarding gates.

if your server act as a gateway to the internet, add this on the
repeater:

route del default
route add default gw <server's ip> <server's link interface>

Your clients must have the ip adress of the repeater as their default
gateway :

route add default gw <repeater's IP(clientside)> <wireless interface>

if it doesn't work, you should perhaps update kernel...

Have a good routing day!