SOLVED (was Re: Problem clarification (was: Problems with vlan
+ carp + alias))
Steve Bertrand
steve at ibctech.ca
Fri Jun 27 12:33:30 UTC 2008
Peter Jeremy wrote:
> On 2008-Jun-26 22:06:11 +0200, Giulio Ferro <auryn at zirakzigil.org> wrote:
>> I guess what I could do was to "poison" their arp cache for each
>> address with a "is-at" message. Is there a way to force the sending
>> of these messages for all the addresses of an interface?
>
> The kernel should send out gratuitous ARP requests whenever you assign
> an address to an interface. You could confirm that this is happening
> by tcpdumping the interface whilst you add aliases.
>
> Rummaging around in ports, you might find net/arping or net/p5-Net-ARP
> useful if you want to manually generate gratuitous ARP requests.
ping -S src_addr should do the trick too, however, that obviously
doesn't scale very well, so it's probably only best to test with..
Steve
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