[j-nsp] DHCP IPv6

[Paul Stewart]

Thank you Amos, Robert, Jared, and Scott for the on-list and off-list replies.

 

Got it up and running – appreciate the responses…

 

Paul

 

 

From: Amos Rosenboim [mailto:amos at oasis-tech.net] 
Sent: Friday, October 07, 2011 2:25 PM
To: Paul Stewart
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] DHCP IPv6

 

Hi Paul,

 

The Junos DHCPv6 implementation does not support DHCPv6 IA requests as sent by users. It supports DHCPv6 PD (prefix delegation) for allocating prefixes to downstream routers.

 

However you don't really need DHCPv6 to assign users with IP addresses. All you need to do enable router advertisements for the relevant LAN interface where your users will connect.

The only problem is that router advertisement doesn't provide users with DNS information. 

For this you need to enable the "other config" flag in router advertisement and configure a DHCPv6 with just DNS information.

 

Sounds tedious ? It is.

 

Amos

 

Sent from my iPhone


On 7 Oct 2011, at 19:31, "Paul Stewart" <paul at paulstewart.org> wrote:

Hoping someone can help me here ;)



We have an upcoming event where we will be supplying a Juniper J series (or
possibly SRX) as a sponsor.  The box will be fed via 45Mb/s Internet
connection from us.



My issue is that I've worked around IPv6 for quite a while now and never
setup DHCP to date for end-customer usage (only worked in core networks with
BGP peering etc - totally static environment).



In the IPv4 world, this seemed rather simple.  In the IPv6 world this all of
a sudden seems complicated....



Does anyone have a JunOS config for IPv6 DHCP they could share?  I'd like to
see a working example that would be relevant to public access.  We can
allocate whatever size of IPv6 prefix makes sense - but I'm thinking the
"common proper" way of doing this ?  In my home network it "just works" with
no DHCP actually in place via Neighbor Discovery if I understand that
correctly.



Perhaps a loaded question - just looking for suggestions ;)



Thanks,



Paul



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