[Gllug] adding a network card to a linux machine

[Andy McGarty]

> On Wed, 2002-08-28 at 00:25, Philippe Rousselot wrote:
> > Hi,
> >
> > I have a machine running mandrake SNF
> >
> > My ethernet PCI card has been recognised without any problem and I am
> > connected to the outside world
> >
> > my second card is an ISA card a 3COM 3c509b and has not been recognized
> > during the install.(I know that the card works fine as my first install
> > was done with a regular linux distro and with only this card)
>
Also have a look at linuxconf which allows you to set up a second ethernet
interface.  You can choose the driver to use and set io ports and IRQs
(which you'll need as its an ISA card).

If the card is set as PnP then it might be an idea to set it as fixed
(you'll need to work out what IRQs/ports are free) which will probably
require you booting from a dos flopply and running the config utility.

You can also set up the ip address etc from here.

Good luck

Andy

> The kernel probes for network cards at boot. When it finds one, it stops
> probing. For a multi homed host, you need to pass the kernel parameters
> at boot if your network drivers were compiled in, or specify the
> appropriate parameters in module load statements. Here's an example from
> the lilo.conf for a monolithically compiled kernel:-
>
> boot=/dev/sda
> map=/boot/map
> install=/boot/boot.b
> prompt
> timeout=50
> image=/boot/vmlinuz
>         label=linux
>         root=/dev/md0
>         append="ether=15,0x6a00,eth0 9,0x6900,eth1"
>         read-only
>
>
> > Md SNF runs at level 3
>
> ???
>
> > What are the files that I have to modify in order to be able to connect
> > another computer to this firewall throught the ISA card ? and how do I
> > modify them ?
>
> Once you've got the interface up and working (which can be a bit more
> awkward with ISA cards, as you'll need to know the IRQ and I/O port
> assignments), you'll need to ensure that routing is enablced in your
> kernel (if "cat /proc/sys/net/ipv4/ip_forward" returns 1, it is), and
> then you'll need to use iptables/ipchains to set up appropriate
> firewalling rules.
>
> HTH,
>
> Mike.
>
>
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