Quoting Jim Bachesta,

[...]
> I try to get my 16 bit 3c509 card to work ifconfig shows a properly 
> configured network device on ep0. dmesg indicate the correct
> irq and base address for the card. When I do a ping to the local 
> net nothing ever gets out. tcpdump running on another machine indicates
> that no icmp packets are getting out of the new machine. I'm trying 
> to get the RJ45 connection to run. I configured the card to use TP RJ45 via
> the 3com configuration utility. My hub doesn't show the port active, except 
> for brief moments during a ping. It seems like the AUI is being used instead 
> of the RJ45 port on the 3com card. Has anyone seen this problem before? 

I've never actually used a 3c509 card but: did you try the '[-]link{0,1}'
flags to ifconfig as described in the ep(4) manual page to make it talk to
the right connector?

- Frank