[c-nsp] Relaying the ipv6 pd prefix from ADSL to internal routers

[Arie Vayner (avayner)]

George,

Did you try to configure router#2 as DHCP relay (on its inside side)
setting the router#1 link local address as the relay server?
Never tried it, but this would be my next step...

Arie 

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of George
Manousakis
Sent: Saturday, October 16, 2010 17:31
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Relaying the ipv6 pd prefix from ADSL to internal
routers

Let's say that I have an adsl router (#1) connected to an ipv6 isp
provider.

 

Via DHCPv6 I could get a dynamic /48 prefix on my internet router, and I
could use it wherever I want to on #1 since I have the /48 prefix
matched on
a general-prefix variable. That way I can have 2^16 /64 lans on router
#1. 

 

What if I want is to relay that specific /48 prefix to another router
(#2)
that has an Ethernet connection with router #1 in order to serve ipv6
lans
on router #2. The interface of #2 that is connected on #1 gets an ipv6
address with a prefix of /64 and #2 gets ipv6 internet connectivity but
no
other interfaces can be configured because the prefix of the isp is not
known to #2.

 

Its seems to me to a very common case scenario but I haven't found any
configuration example.

You can configure a dhcp server of #1 but you can only announce dns,
domain
and STATIC local ipv6 pools. I want to announce the dynamic ipv6 pool
that
is stored on #1 and is assigned from the ISP.

 

How can I do that???

 

Thanks in advance

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