gratuitous ARP from CARP backup host
Gleb Smirnoff
glebius at FreeBSD.org
Mon Nov 21 11:17:23 GMT 2005
On Sun, Nov 20, 2005 at 01:04:40AM +0900, Kazuaki Oda wrote:
K> I reported a problem a few days ago that CARP backup host replies ARP
K> request. This problem has been fixed, thanks. But I found one more
K> problem.
K>
K> 1) master host and backup host are connected to the same layer 3
K> switch.
K>
K> 2) at master host, I run the following command:
K> # ifconfig carp2 create
K> # ifconfig carp2 vhid 22 advskew 10 pass xxxx 192.168.1.7/24
K>
K> 3) master host sends gratuitous ARP.
K>
K> 4) at backup host, I run the following command:
K> # ifconfig carp2 create
K> # ifconfig carp2 vhid 22 advskew 100 pass xxxx 192.168.1.7/24
K>
K> 5) backup host sends gratuitous ARP.
K> And so, layer 3 switch sends packets addressed for 192.168.1.7 to
K> the port connected to backup host, sigh...
Does it sends packets until next advertisement from master or forever?
--
Totus tuus, Glebius.
GLEBIUS-RIPN GLEB-RIPE
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