Re: [v6ops] Routers are hosts too! (Re: I-D Action: draft-ietf-v6ops-host-addr-availability-04.txt)

[Alexandre Petrescu <[e-mail]>]

Le 06/01/2016 22:46, Joe Touch a écrit :
> +1 (and then some)
>
> AFAICT:
>
> 	- a host is an Internet device that sources or sinks packets
>
> 	- a router is an Internet device that *also* relays packets
>
> It may be possible to implement a router that never acts as a host, but
> that requires it never participate actively in routing protocols, IP
> signalling, etc.

Yes.  And:

         - a router doesn't use the information received in an RA, a
           host does.

         - a router doesn't join the all-hosts multicast address.

         - a router doesn't use SLAAC to configure an address for self,
           a Host does.

         - a router does implement longest-matching algorithms, a Host
           doesn't.

Implementations are obviously less clear cut.  But we can talk theory.

Alex

>
> Joe
>
> On 1/6/2016 1:24 PM, Mark Smith wrote:
>> Routers are universally hosts too. The distinction between a router and
>> a host is that a router will also accept packets not sent to addresses
>> assigned to the devices interfaces. It will then see what to do with
>> them according to the route table, sending the packet where ever the
>> route table says or dropping them. That is all that makes it a router.
>
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