On 7-10-11 8:25 PM, Amos Rosenboim wrote:
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.
If the transport to the customer is ethernet-based, and the device at
the customer premises is a simple bridge, then this is a possibility.
However the customer probably uses a router rather than a simple bridge
(you said SRX/J), so you need at least a /64 routed to the customer to
use on the LAN side interface of their router.
The only options you have is to either run a routing protocol (BGP), or
DHCPv6 prefix delegation.
However as I understand it, SRX or J series do not have support for
client-side DHCPv6 PD. Google tells me that some forums have rumors of
this being added somewhere next year...
We run IPv6 in production for lots of ADSL/VDSL/FTTH customers, and we
use DHCPv6 PD. The routers on our side are Juniper E320s, the CPEs are
mostly fritzboxes (though draytek/cisco/some others works too).
See also RFC6204, look at what requirement W-4 says.
Mike.
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