Way to find out which media a tulip card is using

Timm Gleason timm@n2h2.com
Tue Aug 18 15:02:18 1998

I need to find a way of detecting which media type a tulip based ethernet
card is using on a remote box. `ifconfig` just provides
`eth0      Link encap:10Mbps Ethernet`
no matter what speed that the cards is running at. I have tried the
tulip-diag, but it only works when the interface is down and it does not
seem to provide the kind of information I need anyway.

If the server were on our local network I could log into the switch and
check the port, but our servers typically sit on client networks to which we
do not have access to the switch/router/hub login.

The reason behinds this is that we have occasionally had problems with the
D-Link TFE500-TX card sometimes not setting to a specific media when
attached to an autosensing hub/switch. Both ends keep trying to negotiate a
media speed and then they fail. In a single case, the client claims that the
box just switches media by itself. I have a suspicion that something on
their network is causing the problem, but they have not been very
forthcoming with anymore details about the problem.

Timm Gleason
Hardware Engineer
N2H2, Inc.
"In the beginning the Universe was created. This has made a lot of people
very angry and been widely regarded as a bad move." - Douglas Adams
Timm Gleason  --   timm@bess.net  --   timm@n2h2.com  --  http://n2h2.com/
N2H2, Creators of Bess -- 900 Fourth Avenue, 34th Floor--Seattle, WA 98164