Hello.
I'd like to share some thought on what happened to me: I had an external ADSL modem
from
Alcatel connected (with a straight cable, since the device has a reversed ethernet
port) to
a RealTek card on a FreeBSD 4.1-RELEASE box.
I used the simple line in rc.conf:
ifconfig_rl1="inet 10.0.0.6 netmask 255.0.0.0"
Everything would work for a while, but under heavy load the modem would hang so bad it
had
to be cycle-powered, because it wouldn't communicate anymore (the led on its ethernet
port
would turn off).
After trying a lot of things and reading the modem manual over and over I saw that
they
required the ethernet card on the computer to be set to half-duplex.
So I issued an ifconfig and saw that the card was set to media autoselect (NONE).
I tried with
ifconfig rl1 inet 10.0.0.6 netmask 255.0.0.0 media 10baseT/UTP mediaopt
half-duplex
but it would not accept the last parameter.
I ended up with the following in rc.conf:
ifconfig_rl1="inet 10.0.0.6 netmask 255.0.0.0 media 10baseT/UTP mediaopt
-full-duplex"
and now everything works fine.
My wonderings are:
_ "mediaopt full-duplex" does not work, while it's documented in the rl man page;
isn't this
a bug?
_ autoselecting the media obviously does not work correctly, does it?
_ if two devices are connected and one speaks half-duplex, the other full-duplex,
shouldn't
they fail to communicate at all? Is the hang-up after a while and under heavy load
normal?
_ has anything changed in the rl driver after 4.1-RELEASE?
I also hope this might help other people...
Bye & Thanks
av.
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