[CentOS] DHCP with ipv6 tunnel

[Ashley M. Kirchner]

Thanks for the explanation Mark. I will try that when I get home and get on
my test setup. I'll report back with my findings or more inquiries.

On Wed, Oct 1, 2014 at 11:31 AM, Mark Tinberg <mark.tinberg at wisc.edu> wrote:

>
> > That's the thing Mark, configuring it is where I'm stuck. I'm unsure of
> > what addresses I'm supposed to be using as the prefixes that Hurricane
> > Electric gives me for /64 and /48, are different from the tunnel's
> endpoint
> > address. At least I think I'm reading it right from the tunnel's
> > information page.
>
> So an he.net tunnel has a /64 used as a point-to-point network which is
> what runs on the IPv4 tunnel, and either a single /64 that you route for
> your internal subnet, or a /48 which allows you to carve out 65535 subnets
> of /64 each, equivalent addressing to an IPv4 /16 where each address is
> NATting for an entire network itself.
>
> So pick the first /64 subnet inside your /48 allocated to you and route
> that internally and set that up in your router advertisement daemon.
>
> For example if your point-to-point is
> 2001:470:AAAA:1234::1/64 (HE.net) -- 2001:470:AAAA:1234::2/64 (your router)
>
> and your routed subnets are out of 2001:470:BBBB:1234::/48
>
> 2001:470:BBBB:1234::/64
> 2001:470:BBBB:1235::/64
> ...
>
> Then you'd have say 2001:470:BBBB:1234::1/64 on one router interface and
> advertise 2001:470:BBBB:1234::/64
>
> —
> Mark Tinberg, System Administrator
> Division of Information Technology - Network Services
> University of Wisconsin - Madison
> mark.tinberg at wisc.edu
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