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 Post subject: IPv6 PPPoE
PostPosted: Sat Dec 15, 2012 10:10 pm 
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Joined: Sun Sep 16, 2012 9:55 pm
Posts: 541
Location: England
I've been playing around with creating a basic PPPoE network. I've managed to get this working for IPv4 including RADIUS Authentication and Accounting. :)
My next step was try and add IPv6 to the network. I decided to create a seperate IPv6 only network first to prove the concept, before making a dual-stack network.

The topology is as follows (R1 = BRAS, R4 = CPE). All routers are 3725 running c3725-adventerprisek9-mz.124-25d
Image

The PPP Connection succeeds, along with DHCP-PD (Prefix Delegation) for the CPE LAN. But I am unable to get a global IPv6 address on the Dialer1 interface of R4.

Reading the Cisco IPv6 Command List, along with some examples from the net the following should assign a /64 from the v6PPPOE pool using SLAAC
Code:
peer default ipv6 pool v6PPPOE

Code:
ipv6 local pool v6PPPOE 2A01:348:1DB:100::/56 64

Can any network experts see anything missing from the config that would be needed.

Thanks




Attachments:
R4.cfg.txt [1.15 KiB]
Downloaded 193 times
R1.cfg.txt [1.58 KiB]
Downloaded 196 times

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 Post subject: Re: IPv6 PPPoE
PostPosted: Sun Dec 16, 2012 10:58 am 
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Joined: Sun Sep 16, 2012 9:55 pm
Posts: 541
Location: England
I think I may have managed to answer my own question with help of some reading here: http://www.gossamer-threads.com/lists/cisco/nsp/146058#146058. If I understand all of what has been said the Dialer1 interface on the CPE doesn't ever need to have a Global IPv6 address.

This then lead me to the next weird thing, even though the Dialer1 interface has
Code:
ipv6 address autoconfig default
which should install the default route, it doesn't seem to. So that meant I needed to add
Code:
ipv6 route ::/0 dialer1
to give me my default route.



_________________
Daniel
Forum Moderator & Debian Package Maintainer for GNS3, Dynamips & VPCS.
Standalone DEB Packages are available from http://gns3.serverb.co.uk - To be updated!


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