Date: Wed, 28 May 2003 19:57:07 -0400 From: "akanwar@digitarchy.com" <akanwar@digitarchy.com> To: freebsd-net@freebsd.org Subject: gratuitous ARP with em interface. Message-ID: <63340-22003532823577384@M2W054.mail2web.com>
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Hi all, =20 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= =2E Till now I was experimenting with two fxp interfaces and everything worked= perfectly=2E i=2Ee=2E when the ip address moved over (using a perl script = to run ifconfig commands) it sent out grat=2E arps for each of its alias IPs=2E T= his allowed the router to update its Arp table and talk to the newly active interface=2E 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 interfac= e=2E I am at a loss to understand what has changed=2E Could it be that the line= DOWN -> UP time of the em interface is longer thereby causing a loss of ARPs ? Any suggestions ? Thank you=2E =20 =20 -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web=2Ecom/ =2E
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