[j-nsp] IPv6 for PPP customers on ERX310

[Egor Zimin]

Hello, Amos.
I have some experience with Juniper IPv6oPPPoE  on E-series.
Can you please show me "show configuration" of your BRAS ?

I have encountered a similar problem. In my case root cause was
validLifetime="0" in RA messages. Like this:
---
ipv6 nd prefix-advertisement 2001:db8::/64 0 0 autoconfig
---

2010/12/31 Amos Rosenboim <amos at oasis-tech.net>:
> Hello Everybody and happy new year,
>
>
> I'm managing the network of a small ISP and working on adding IPv6 to the network.
> Subscribers connect to the ISP services by either PPPoE or L2TP dialers.
> On the ISP side the edge router (Juniper E310 BRAS) is configured with local DHCP pool out of which a /48 is assigned to each subscriber.
>
> This works great for client devices that uses IPv6DHCP with prefix delegation option to request a prefix.
> However when the client does not have a CPE and uses his windows box to connect (by using Windows L2TP dialer) an IPv6 prefix is not assigned.
> In packet captures we noticed that the windows client is sending DHCPv6 solicit messages requesting for absolute non temporary addresses (IA_NA).
> This makes sense as the device is a host however it's not supported by the Juniper router.
>
> We tried another option which is to send RA from the Juniper with a common /48 prefix for all subscribers.
> In packet captures we are seeing the RA message with the prefix information, however the windows client does not assign itself with any global scope address.
>
> I'm not sure if we are doing something wrong on the Juniper ERX, or should something be changed on the Win7 boxes.
>
> Juniper JTAC helped me to determine the problem but are not willing to offer any guidance as to the next steps.
> Any real world configurations of IPv6 for PPP customers on ERX/E series routers would be of great assistance.
>
>
> Regards
>
> Amos
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>



-- 
Best regards,
Egor Zimin