Media Type of Ethernet Card?

Media Type of Ethernet Card?

Post by Matthias Heinema » Fri, 10 Oct 1997 04:00:00



Hi There!

I have a combo ethernet card (NE2000) for which I can't configure the media
type (BNC or Twisted Pair) with the DOS configuration tool. I can't connect to
the internet, but it doesn't seems to be an error of IRQ or I/O. These
parameters are set up properly.

I wonder if there is anything how I can tell linux to use the 10BaseT
connector?

Matthias

 
 
 

Media Type of Ethernet Card?

Post by William R. Matti » Sat, 11 Oct 1997 04:00:00



> Hi There!

> I have a combo ethernet card (NE2000) for which I can't configure the media
> type (BNC or Twisted Pair) with the DOS configuration tool. I can't connect to
> the internet, but it doesn't seems to be an error of IRQ or I/O. These
> parameters are set up properly.

> I wonder if there is anything how I can tell linux to use the 10BaseT
> connector?

> Matthias

Not really enough info to go on here but If I assume that you are using
a 2.0.30 kernel with module support and the ne2000 support is via
modules, then maybe....

-------/etc/conf.modules-------------
alias eth0 8390
alias eth0 ne
options ne io=0x340 irq=10 xcvr=X              #X=0 if using BNC X=1 for
AUI/UTP
-------------------------------------

Note: I have never verfied that this works.. my ne2000 is setable via
options. But this information came from /boot/module-info-2.0.30 for a
3C503 which I have used before so it *should* work. If you're not using
modules, ie: pre 2.X kernels then this info could be passed to the
kernel using LILO

Hope that this helps
Regards
Bill
--
William R. Mattil       | Fred Astaire wasn't so great.

(972) 256-3219          | and... in high heels.

 
 
 

Media Type of Ethernet Card?

Post by Donald Beck » Mon, 13 Oct 1997 04:00:00




>I have a combo ethernet card (NE2000) for which I can't configure the media
>type (BNC or Twisted Pair) with the DOS configuration tool. I can't connect to
>the internet, but it doesn't seems to be an error of IRQ or I/O. These
>parameters are set up properly.

>I wonder if there is anything how I can tell linux to use the 10BaseT
>connector?

In general, no.  There is no provision in the NE2000 register interface to
set the transceiver used.  So each board type uses a unique method.
Generally this is either a jumper, or an EEPROM setting.  Some boards also
implement "use 10baseT if there is link beat, otherwise use the other
transceiver".

If you have a real NE2000+ or another board that uses the NatSemi 83905 I've
written a setup program that may work to set the transceiver type:
   http://cesdis.gsfc.nasa.gov/linux/setup/atlantic.html

--

USRA-CESDIS, Center of Excellence in Space Data and Information Sciences.
Code 930.5, Goddard Space Flight Center,  Greenbelt, MD.  20771
301-286-0882         http://cesdis.gsfc.nasa.gov/pub/people/becker/whoiam.html

 
 
 

1. setting the media type for an ethernet card without ifconfig

I have a very old redhat 5.1 gnu/linux system whose ethernet card has
both bnc and an aui connectors.  The bnc connector works, but i'd
like to switch to using the aui.

So somehow i need to inform the hardware that i'll be using a
different connector.

I'd like to use /sbin/ifconfig, but the version of ifconfig on the
machine (1.24, net-tools 1.33, kernel 2.0.32) does not support a
`type' argument, and even if it did, i don't know if the device driver
would know what to do.

So how else can i do it?

The machine is a legacy system so i don't want to touch any of the
hardware internals, and i don't want to do anything outside of
userland to the software.

People back in the old days must have had some way to change the
media type of their ethernet cards?

Thanks in advance for any suggestions.  (And thanks to John-Paul
Stewart, Hactar, and Michael Meissner for earlier advice on getting
the external hardware connections lined up this far.)

dan

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