Re: [DNA-BOF] Detecting Network Attachment BoF description (rev 2)

[Alper Yegin <alper@docomolabs-usa.com>]

>> Or, host might change its access point and consequently access router, but
>> the two routers might be advertising the same prefix. In that case, IP
>> address of the host does not change, but default router information must
>> change. So, even if the subnet does not change, host has to react to
>> this.
> 
> Does it? I assume that the AR is the default router on the link. If
> the AP changes, but the AR does not, why is this visible to IP? It
> doesn't need to be.

Imagine both the access point and the access router changes. But the
previous and new access routers are in the same multi-link, hence they are
advertising the same prefix. Host has to change its forwarding table and
neighbor cache by adding the new default router. But host does not have to
change its IP address.

Alper