anycast address as deault router

Nick Hilliard nick-lists at netability.ie
Wed Dec 30 22:29:42 CET 2009


On 30/12/2009 21:25, The Dark One wrote:
> supposing that on a LAN there are 2 routers (default-gateway) and one
> host and that the routers don't support any FirstHopRedundancyProtocol,
> does it make sense to configure a anycast address on both routers and
> configure that as the default-gateway of the host?
> If it does makes sense, is it also possible to have the routers
> advertise that anycast address in their RA?

Sounds like this would fall foul of duplicate address detection.  I suspect
both your routers and your leaf nodes would probably get very excited about
this, and not necessarily in a good way either.

By all means try it out, but when it refuses to work, take a look at
RFC2462 (section 5.4).

Nick


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