Passing Interface Name to Event Script
dhcp1 at thehobsons.co.uk
Tue Nov 17 07:58:36 UTC 2009
Rick Solotke wrote:
>Thanks to both of you for the bridging suggestion. I have used the
>Linux Ethernet bridge in the past, but hadn't even considered it in this
>situation. The end devices connected to the router in this setup are
>custom devices that appear to be sensitive to receiving unexpected
>traffic. I believe that with bridging, there will be circumstances when
>packets will be forwarded out every bridge interface (prior to the
>bridge learning which port to use for a given address).
In that case, they'll struggle to work on any normal network - if
their network stacks are that broken, send then back and refuse to
accept them until they aren't broken ! ANY network switch will
forward all broadcast traffic, plus any traffic for MACs it doesn't
have a table entry for, to all ports - that's how they work, and the
Linux bridge code is no different in that respect.
And of course, if you use a hub (yes they still exist and have their
uses) then each device sees ALL traffic on the network.
What you can do with a Linux bridge, that you can't with a normal
one, is to run packet filtering and drop certain traffic if needed.
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