Re: IPv6 Stateless Configuration

[Zhao Ping <pzhao () live com>]

Pay attention to the special layer 2 multicast address for the RA packet.


On 10/15/10 3:21 PM, "Franck Martin" <franck () genius com> wrote:

> I have seen layer 2 devices not forwarding IPv6 packets (while forwarding
> IPv4 packets)...
>
> I would put a packet capture, and see if I see the RA packets coming from
> the router.
>
> On a Cisco router, RA is enabled by default and does not require any
> setting.
>
> ----- Original Message -----
> From: "Rod James Bio" <rjubio () gmail com>
> To: "Franck Martin" <franck () genius com>
> Cc: nanog () nanog org
> Sent: Friday, 15 October, 2010 7:11:07 PM
> Subject: Re: IPv6 Stateless Configuration
>
> That's my setup right now. The problem is the machine is not configuring
> its IPv6 address with RA already turned on. I'm guessing that the flag
> set on the UTM router advertisement messages is wrong. May I know the
> default flags use on a cisco router? Thanks.
>
>
> On Fri, Oct 15, 2010 at 3:04 PM, Franck Martin < franck () genius com >
> wrote: 
>
>
> You need all to be part of the same Ethernet network. So if this UTM can
> act as a bridge/switch you should be ok. Otherwise the RA broadcasts need
> to reach your device so it guesses the network and add it's Mac address
> to the network and make an ipv6 address.
>
> I would say RA is a bit like DHCP in your case in terms of network
> topology but beside that RA is simpler (no leases table).
>
> Toute connaissance est une réponse à une question
>
>
>
>
> On 15/10/2010, at 17:49, Rod James Bio < rjubio () gmail com > wrote:
>
> > Hi, 
> >
> > First time poster here. I would just like to ask what are the flags on
> > router advertisement to enable a host to autoconfigure its IPv6
> > address. 
> > There is this device that I'm configuring that I cant get RA to work. I
> > was 
> > able to work out the connectivity from the device to the IPv6 internet,
> > but 
> > the problem is host behind this device is not getting its unique global
> > ipv6 
> > address. The device is a cyberoam UTM.
> >
> > Thanks! Rod Bio.