Enabling Gratuitous ARP

[J65nko BSD]

On 4/14/05, Adam Smith <adam at internode.com.au> wrote:
> Hi,
> 
> In a particular network scenario we have, swapping an ethernet link between
> two FreeBSD machines using the same IP and a different MAC is proving to be
> a problem.
> 
> We have discovered that in order to make this work we will need to enable
> gratuitous ARP.  Does anyone know how to turn this feature on?
> 

http://openbsd.org/faq/faq6.html#CARP and
http://www.freebsd.org/cgi/man.cgi?query=carp&apropos=0&sektion=0&manpath=FreeBSD+6.0-current&format=html
It looks like carp is available in FBSD 5.4

=Adriaan=