[ale] Weird nic behavior...

[William Wylde]

I'm running slackware 7.1, and have 2 nics in my machine- 1 3com card which
uses the 3c59x driver, and a Dlink pci nic which uses the ne2k-pci driver.  The
3com card is connected to my ADSL router, and the DLink card is connected to my
local lan through a DLink hub.

I had the 3com card running as eth0, until I recompiled my kernel the other
night, and for some strange reason I cannot fathom, after the reboot to the new
kernel the nics swapped device ids!  (i.e. eth0 became eth1, and vice-versa). 
On the reboot, I found my lan connection still available (after tweaking the
startup scripts to reflect the device change) but the ADSL link down.  I
screwed around with the pppoe scripts until I could finally connect to the net,
but then found that the LAN was unreachable.

I can ping the DLink card using the ip assigned at boot-time from the linux
box, but the rest of the LAN can't see it- and it fails to see the rest of the
net.

Now, nmap will say that the LAN host is up when I run it with the -P0 flag (and
this seems to be the only application that can even determine that there's a
host up and running on the LAN), and it will ONLY see it with that flag.  If I
add any other type of flags to it, it will take upwards of an hour to run
simple port scans on the LAN boxen.

Anybody have a clue as to what's going on here?



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