[tulip] Problems with two tulip based cards: RESOLVED

[Simon Hill]

Hello again,

I have solved the problem. Further experimentation showed that even though
ping gave no output on the box in question, tcpdump showed that the
packets were actually getting through. I think that the lack of output
from ping was due to failed DNS lookups, even though I was using IP
addresses. The system had been set up to use the local network's 
nameserver, which did not contain entries for the external system I was
using for testing. Once I switched to a nameserver on the external
network, everything started to work.

Regards,

Simon Hill (simon@metasystema.org)
http://www.metasystema.org/

On Sat, 28 Oct 2000, Simon Hill wrote:

> Hello,
> 
> I'm having probems with two tulip-based interfaces under RH6.2 (w/2.2.16
> patched to fix EV4 FP trap bug) on a UDB. I previously had both working
> under RH6.1 (stock kernel), using IIRC something like this:
> 
> alias eth0 tulip
> alias eth1 tulip
> options eth0 -o tulip-0 io=0x8800 irq=10
> options eth0 -o tulip-1 io=0x9000 irq=15
> 
> /proc/pci shows (summarizing since I can't get to the box over the net):
> DEC DC21040 (rev 35) IRQ 10 IO 0x8800 (onboard interface)
> DEC DC21041 (rev 33) IRQ 15 IO 0x9000 (Kingston pci card)
> 
> Now it appears that the driver (I've tried tulip, old_tulip, and de4x5),
> detects both adapters at once, and no longer accepts io or irq settings.
> If I try to set them, I get 'invalid parameter parm_io' or 'invalid
> parameter parm_irq'. If I let the driver autodetect them, one interface
> works fine, the other doesn't. Specifically, either interface will work
> when configured for my local network connected to a 10Mb hub, neither
> interface will work when configured for my external network and connected
> to the LinkSys 10/100 hub (and yes, I've reset the hub, rebooted the
> machine, etc). However, when the second adapter is removed, the onboard
> one will talk to the LinkSys 10/100 hub just fine.
> 
> The characteristics of the 'not working' state are:
> 
> ping from another system on the external network -> UDB: works
> ping from UDB to other system: doesn't work, summary claims 1 success.
> 
> Anyone have any ideas about what the problem might be?
> 
> TIA,
> 
> Simon Hill (simon@metasystema.org)
> http://www.metasystema.org/
> 
> 
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