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Date: Sun, 20 Nov 2005 01:04:40 +0900
From: Kazuaki Oda <kaakun@highway.ne.jp>
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Subject: gratuitous ARP from CARP backup host
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Hi,

I reported a problem a few days ago that CARP backup host replies ARP
request.  This problem has been fixed, thanks.  But I found one more
problem.

1) master host and backup host are connected to the same layer 3
   switch.

2) at master host, I run the following command:
   # ifconfig carp2 create
   # ifconfig carp2 vhid 22 advskew 10 pass xxxx 192.168.1.7/24

3) master host sends gratuitous ARP.

4) at backup host, I run the following command:
   # ifconfig carp2 create
   # ifconfig carp2 vhid 22 advskew 100 pass xxxx 192.168.1.7/24

5) backup host sends gratuitous ARP.
   And so, layer 3 switch sends packets addressed for 192.168.1.7 to
   the port connected to backup host, sigh...

I don't know how to fix it.  Is there any reason why CARP backup host
sends gratuitous ARP?


--------------------
Kazuaki Oda