Re: 2nd class c on ethernet port.
alexm@agetech.net
Tue, 29 Oct 1996 18:38:51 -0500
Matthew S. Crocker wrote:
>
> > A secondary ethernet address is a heck of a lot cheaper than a second
> > ethernet card in my Cisco, so it's definitely useful, especially since
> > Portmasters fill up Class Cs so quickly!
>
> 'course the 'real way to do it' is to have the ethernet of your PM on
> your local lan (Class C) and route a 32 IP subnet to the PM for its
> serial ports. This is what we do, works great.
>
> There is *NO* valid reason for having two IP addresses on the same
> interface. It can all be done with proper routing.
>
> I'm in the process of installing a new 4500-M with 6 ethernet ports. I'm
> going to put all routers on e0/1 and give them dummy IP addresses
> (10.x.x.x). The the 'other side' of the router will get the real IP address.
>
> My FR network is already configured with dummy IP addresses on S1, works
> great. You have a whole Class A to work with when you do it this way.
>
> PS: Routers don't need to be routable.....
>
> -Matt
>
> -Matthew S Crocker "The mask, given time, comes
> Crocker Communications to be the face itself." -anonymous
> Internet Division Phone (413) 585-5164
> PO BOX 710 Fax (413) 587-3352
> Greenfield, MA 01302-0710 Email matthew@crocker.com
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
In order to have 2 class c's do you need to have a multihomed router
with 2 ethernet addresses or in the case of a Linux box, 2 ethernet
cards?