Re: multiple adaptors - 1 ethernet card

[Andrew Libby <alibby@voicenet.com>]

On Fri, May 28, 1999 at 01:20:43PM -0400, Brent 3CI wrote:
> I'm also new to Linux and loving it.
> I've been given a project to replace our existing company router (a linux 5.1 box) connecting two networks 1&2 (already connected via a router) with a cablemodem. I've loaded Redhat 5.2 and configured the 2 NICs and the HostName, Name servers & Search domains, Default gateway, Other routes, Hostname search path,  and info about other hosts.  The problem is I can't set two adaptors for eth0 as we have in our current router (networks 1 & 2 use eth0).  I use linuxconf to set the adaptors.  When I enter the second adaptor as eth0 it replaces the first one's IP addresses and blanks out adaptor 2.  Then adaptor 3 (eth1 - the cable modem) moves up to adaptor 2....  Any suggestions?   Thanks
> Brent

While I've never done this personally, I've been present while it's been
done.  My uderstanding is that there commonly is a need to use lilo
parameters to send information on the second card to the kernel at
boot time.   This is so the kernel can find the second card.  I'm 
not sure if the autoprobe code stops once it finds a card, or what 
the story is.  At any rate, a good place to start reading is at the
LDP (http://sunsite.unc.edu/LDP).  Particularly, I'd be interested in the
following documents:

	The Linux Networking Overview HOWTO
		metalab.unc.edu/LDP/HOWTO/Networking-Overview-HOWTO.html

	Linux Ethernet-Howto  (This has a section for what you need).
		metalab.unc.edu/LDP/HOWTO/Ethernet-HOWTO.html

	Lilo mini-Howto
		metalab.unc.edu/LDP/HOWTO/mini/LILO.html

I have also heard of a mini-distribution of Linux specifically packaged
for use as a rouger.  I understand that it's call the Linux Router Project.

Best of luck to you.

Andy

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