Description of problem:

When configuring multiple bond interfaces (active-backup mode) on one system, all interfaces reply to arp requests for any ip adress configured on the interfaces.

example setup:

bond0 = 10.10.145.131 (00:21:5a:f3:fe:ce)
bond0:1 = 10.10.145.132
bond1 = 10.10.146.131 (00:21:5a:f3:fe:cc)

An arp request "Who has 10.10.145.131? Tell xxx.xxx.xxx.xxx" would (sometimes) be answered with two replies "10.10.145.131 is at 00:21:5a:f3:fe:ce" and "10.10.145.131 is at 00:21:5a:f3:fe:cc".

We have four systems showing this behavior and on each system the problem started after upgrading the kernel-smp from 2.6.9-89.33.1 to 2.6.9-101.

I have attached four pcap files showing the arp requests of the two bonding interfaces of two systems right after clearing the arp cache.

Version-Release number of selected component (if applicable):
kernel-smp-2.6.9-101.EL

  
Actual results:
See attached archive.


Expected results:
Only interfaces with the correct ip address should respond to arp requests asking for this ip.