interesting question. without tearing up my pod to set up a Q&D, let me try
a little logic here.

when the router checks its FIB, and determines that the packet in question
is to go out a particular interface ( as opposed to a network ) what happens
then? does the router place that packet onto the wire out that interface, or
does it place the packet into the process that manages what happens on that
interface?

In other words, if the packet is destined out an Ethernet interface, how is
it handled? differently than it would be handled under other circumstances?
I don't think so. I would think that the process that controls the Ethernet
interface would then follow the standard operating procedure for all packets
bound out onto an Ethernet - that there would be an ARP request. If there
were no response from some device that knew the destination network, then
the packet would be dropped. if there were a device, the router would then
forward the packet.

I guess what I am saying is that the router operates in a standard manner.
all packets that the router handles are treated the same way. meaning they
are all processed by the appropriate router process. the router code is like
any other computer code - a series of if-then-else sequences. all packets
are processed the same way - inbound and outbound.

in the case we have been discussing, the question I now have is whether or
not the cable modem is responding to the ARP requests of the 1605 router.

anyone have a different understanding of how the router operates?

Chuck



""Michael L. Williams""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> "Paul Lalonde"  wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > but
> > routing out via an Ethernet interface will likely just *drop* the packet
> > onto that broadcast domain (subnet) without pointing it to a specific
next
> > hop.
>
> This raises an interesting question:  If you try to make a static route
that
> routes out an ethernet interface (multi-access medium), does the router
send
> the frame to the Layer 2 broadcast address?  If so, then if there is
another
> router somewhere on that segment, wouldn't it hear and route the packet
> properly, or would it see it as a layer 2 broadcast and it not go any
> further?
>
> Mike W.




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