misch at multinet
Jul 2, 2009, 4:38 AM
Views: 503
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Problem with gratuitous arps in IPaddr2
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Hi,
I encountered a problem with an ordinary IPaddr2 resource. In the logs I see:
IPaddr2[9651]: ERROR: Could not send gratuitous arps
With tcpdump I see, that the node sends out the arp requests, but does not
answer it:
arp who-has 188.92.128.250 (ff:ff:ff:ff:ff:ff) tell 188.92.128.250
With arping I tried to trace the problem a littel bit further and found the
following: It seems that the kernel / driver does not answer arp request
origination from an inferface of the server itself. arp requests from other
hosts are answered.
I checked the sysctl details, but nothing strange there. All parameters
related to arp are set to "0" (default).
I have seens this on different hardware and different kernel versions.
Any idea what might be wrong? Thanks.
--
Dr. Michael Schwartzkopff
MultiNET Services GmbH
Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany
Tel: +49 - 89 - 45 69 11 0
Fax: +49 - 89 - 45 69 11 21
mob: +49 - 174 - 343 28 75
mail: misch[at]multinet.de
web: www.multinet.de
Sitz der Gesellschaft: 85630 Grasbrunn
Registergericht: Amtsgericht München HRB 114375
Geschäftsführer: Günter Jurgeneit, Hubert Martens
---
PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B
Skype: misch42
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Problem with gratuitous arps in IPaddr2
