[openib-general] ifup/ifdown scripts don't work with IPoIB

Grant Grundler iod00d at hp.com
Thu Oct 27 11:03:57 PDT 2005


On Thu, Oct 27, 2005 at 09:37:29AM -0700, Bob Woodruff wrote:
> Grant wrote,
> >What does it say when you use *192* for the first byte?
> 
> Same thing, I had a typo in first email,
> 
> arping -c 2 -w 3  -D -I ib0 192.168.0.1
> ARPING 192.168.0.1 from 0.0.0.0 ib0
> Sent 2 probes (2 broadcast(s))
> Received -1 response(s)

Hrm...wouldn't that be a bug in arping program?
How can one get "-1" responses?

And I can't reproduce that here (ia64-linux):

gsyprf3:~# ifconfig ib0
ib0       Link encap:UNSPEC  HWaddr 00-00-04-04-FE-80-00-00-00-00-00-00-00-00-00-00  
          inet addr:10.0.0.51  Bcast:10.0.0.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:2044  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:128 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

gsyprf3:~# arping -c 2 -w 3  -D -I ib0 10.0.0.51
ARPING 10.0.0.51 from 0.0.0.0 ib0
Sent 2 probes (2 broadcast(s))
Received 0 response(s)
gsyprf3:~# arping -c 2 -w 3  -D -I ib0 10.0.0.55
ARPING 10.0.0.55 from 0.0.0.0 ib0
Sent 2 probes (2 broadcast(s))
Received 0 response(s)

There is no 10.0.0.55 IP in use on this network.
I don't understand if the above result is correct or not
and I did RTFM.

BTW, I'm using Debian "iputils-arping 20020927-2".

grant



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