[lug] router in bridge mode
zlynx at acm.org
Tue Aug 20 10:16:54 MDT 2002
On Tue, 2002-08-20 at 10:12, D. Stimits wrote:
> The bridge is like a piece of wire, nothing knows it is there. If you
> used it for communicating between two local machines, they would use the
> IP address assigned by the ISP. So MachineA going to MachineB would
> traverse the internal network, through the bridge, to the ISP, back to
> the bridge, through the internal net again, and to the other machine.
Try watching your network traffic using tcpdump. I think you will be
surprised. The Linux bridge should be acting as a switch, detecting
that the MAC address of MachineA and MachineB are local and sending the
packets directly. I don't believe it will send it all the way out to
That's how I believe it works, anyway.
jbriggs at esoft.com
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