[AusNOG] ipv6, dhcpv6 pd and dsl/dial termination

[Curtis Bayne]

Most useful post I have seen on list this year Tim, thank you.

If there is anyone out there kicking about who is interested in  
playing around with this on Mikrotik, I have purchased some new  
hardware recently to testbench our implimentation - I warmy welcome  
anyone wanting to gain exposure on this platform to provide input and  
perhaps perform some tests in a non-production environment.

I do not have the appropriate Cisco hardware, but I am happy to  
provide colo/ip gratis to anyone wanting to test their Cisco kit  
outside of their environment.

Happy v6ing :)

Sent from my iPhone

On 13/02/2010, at 11:21 PM, "Tim Warnock" <timoid at timoid.org> wrote:

> Hey all,
>
> Earlier today I was playing around with local DHCPv6 Prefix  
> Delegation pools
> for IPv6 to the customer on a Cisco LNS.
>
> In the hopes of:
> a) checking to see that my thought process is sane
> and
> b) trying to encourage more ISPs to try IPv6 to the customer.
>
> In that spirit here is a bit of a "mini howto". Feedback is definitely
> welcome.
>
> Ideas here were inspired by the lads over at internode. I've not  
> seen their
> configuration however.
>
> ! give out a /64 out of a /48 for the PPP link
> ipv6 local pool PPP-POOL 0000:0000:100::/48 64
>
> ! this is where dhcpv6 clients will pull a /62 from
> ipv6 local pool ISP-PD 0000:0000:101::/48 62
>
> ipv6 dhcp pool PPP-POOL
> ! I just made up some numbers for the ttls.
> prefix-delegation pool PPP-POOL lifetime 86400 14400
> ! dont know whether this is useful or not on the PPP link itself  
> (being
> that the PPP link is stateless auto configured):
> ! dns-server 0000:0000::101
> ! dns-server 0000:0000::102
> exit
>
> ipv6 dhcp pool ISP-PD
> ! You could use infinity to issue "static" allocations (this is  
> local to
> the LNS but)
> ! Although I would figure that doing IPv6 framed routes or something  
> out of
> RADIUS would be better for true statics...
> ! Again, I just made up some numbers for the ttls.
> prefix-delegation pool ISP-PD lifetime 86400 14400
> ! issue your ipv6 dns servers here
> dns-server 0000:0000::101
> dns-server 0000:0000::102
> exit
>
> finally on your virtual template:
> int virtual-template x
> ipv6 enable
> ipv6 address autoconfig
> ipv6 unnumbered FastEthernetX || LoopbackX (set the same as v4 I  
> guess?)
> no ipv6 nd ra suppress
> ipv6 dhcp server ISP-PD rapid-commit
> peer default ipv6 pool PPP-POOL
> exit
>
> Router#test Virtual-Template X subinterface
> Subinterfaces may be created using Virtual-TemplateX
>
> The commands used don't appear to affect the ability to create virtual
> template subinterfaces.
>
> Routes should show up as connected, and you could put in hold-up  
> routes if
> you wanted.
>
> For the client end:
> int diX
> ipv6 enable
> ipv6 address autoconfig
> ipv6 dhcp client pd ISP-PD rapid-commit
> exit
>
> int vlan1 || int fas0/0
> ipv6 address ISP-PD ::1/64
> ipv6 enable
> exit
>
> Using RADIUS some of this info could be pushed out via Cisco-AVPairs.
>
> Enjoy!
>
> Sites I drew inspiration from:
> http://ipv6.internode.on.net/configuration/adsl-cisco/
> http://forums.whirlpool.net.au/forum-replies.cfm?t=1315758&p=3#r60
> http://forums.whirlpool.net.au/forum-replies.cfm?t=1315758&p=5#r88
> http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-adsl_dial.h
> tml
> http://www.cu.ipv6tf.org/pdf/sa_dial6.pdf
>
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