On Wed, May 28, 2003 at 07:57:07PM -0400, [EMAIL PROTECTED] wrote: > Hi all, > > Is there a known issue with alias IPs on em interfaces not sending out > gratuitous arps ? > > The situation is as follows: > I am running a custom redundancy daemon that migrates the IP address of a > server from one interface to another in case the active network path fails. > Till now I was experimenting with two fxp interfaces and everything worked > perfectly. i.e. when the ip address moved over (using a perl script to run > ifconfig commands) it sent out grat. arps for each of its alias IPs. This > allowed the router to update its Arp table and talk to the newly active > interface. > > Now when I try running the code with em (gigabit Ethernet over copper) > NICs, I simply do not see the gratuitous arps come out of the new interface. > > I am at a loss to understand what has changed. Could it be that the line > DOWN -> UP time of the em interface is longer thereby causing a loss of > ARPs ? Any suggestions ? > Yes, I can reproduce this too, no gratuitous ARP is sent.
Cheers, -- Ruslan Ermilov Sysadmin and DBA, [EMAIL PROTECTED] Sunbay Software AG, [EMAIL PROTECTED] FreeBSD committer.
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