--- Mark Benson <[EMAIL PROTECTED]> wrote:

> And there-in lies the problem. Routers and Bridges
> are protocol level 
> dependent and thus will not accept anything they are
> not set up to 
> pass. TCP/IP routers that don't support AppleTalk
> will reject signals 
> that are not routable, and may even just throw a
> panic fit (are these 
> cheap routers or expensive ones?) Switches and Hubs
> however are packet 
> level dependent and thus pass any packet that is
> designated to pass 
> packets from one MAC address to another, regardless
> of what it contains.

He needs to have a chat with the sysadmin and find
out if the switches and routers are the managed
type, which can be configured over the ethernet
cable using a Telnet program or if they're fancy
ones with built in mini web servers, by using a
web browser. There is where the various protocols
can be enabled or disabled and some can be managed
on a per-port basis to select the speed(s) each
will work with.

Unless your network really needs such configurability
(fer instance you have many 10 megabit NICs that
simply refuse to work with anything faster in a hub,
switch etc) it's best to stick with an unmanaged
switch that blindly passes ALL data while routing
it to the requested MAC address.

=====
"You never have to repair or replace what you leave out of the design."
William "Bill" Powell Lear, inventor of the 8-Track tape and the Learjet.

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