Re: Choice of address for IPv6 default gateway

[Mohacsi Janos <mohacsi () niif hu>]

On Thu, 26 Jan 2012, Mathias Wolkert wrote:

> Hi
>
> On 1/25/12 23:53 , Owen DeLong wrote:
> [...]
> > Note, you can use RA for default gateway while still using static addressing.
>
> Could you give me a little bit more on this?
>
> It seems to me that most platforms stop listening to RAs once you give
> them a static address.

Static address + RA working on FreeBSD and Linux. Sorry we don't have 
other servers, where we are using statically configured IPv6 addresses.

> Letting a host run slaac and then add a static address is not good
> enough as the slaac address might be chosen for locally generated packets.


Define for every application your bind address - locally generated packets 
will use it. If it is not possible Use RFC 3484 source address selection 
for selecting static source addresses.


> If it works with listening on RAs when running with statically
> configured address, why HSRP/VRRP?

Statically configured default gateways worked for us with VRRP/HSRP. 
VRRP/HSRP is for first-hop redundancy.
        Best Regards,
                Janos Mohacsi