From: Henrik Nordstrom <[EMAIL PROTECTED]>
To: usman fool <[EMAIL PROTECTED]>
CC: [EMAIL PROTECTED]
Subject: RE: [squid-users] Squid transparent proxy and bridge question
Date: Thu, 25 Mar 2004 00:34:39 +0100 (CET)

On Wed, 24 Mar 2004, usman fool wrote:

> i was saying this because it was looking like he is running squid on that
> bridge.
> bsd bridges can have ip addresses dont know if its possible in linux or not.


Linux bridges can have IP addresses, and in fact is a must if you want to
run a proxy there but it is not the point.

> >ip forwarding is not needed in bridge mode.. bridge forwarding is..
>
> same reason  i stated earlier.

ip forwarding should not be needed in a bsd bridge either.. a bridge is
by definition forwarding Ethernet frames, not IP forwarding.

Please do not confuse bridge with routing or proxy-arp. a bridge operates
at the Ethernet layer and is not related to IP forwarding while routing
(including proxy-arp) operates at the IP layer and needs IP forwarding.

u are very right.


i know we are pretty off topic but let me tell u mine point.becoz u are not understanding me well.
which is due to unclear question.
consider a example which i considered in this problem.


a machine with 2 ethernet cards (eth0,eth1) operating as bridge whereas its 1 ethernet interface(eth1) has ip address and squid is running on it, now that machine is connected to internet through ppp0 (as pp0 is not part of bridge) . ipforwarding is enabled to communicate between eth1 and ppp0.

a machine acting as a bridge and router at the same time.
which i have done in openbsd.

?Regards
Henrik

regards usman.

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