nanog mailing list archives
Re: ISP customer assignments
From: Marco Hogewoning <marcoh () marcoh net>
Date: Tue, 13 Oct 2009 22:01:14 +0200
On Oct 13, 2009, at 9:56 PM, Joe Abley wrote:
On 2009-10-13, at 14:46, Matthew Petach wrote:I allocate a /64, but currently I configure only a /127 subnet on the actual interface.For BRAS/PPPoE deployments you're dealing with a point-to-point link, so in principle you can number the endpoints using whatever you want. They're just host addresses and interface routes when it comes down to it. There's no need to number both ends within a single conventional subnet.In the test deployment I did earlier in the year I defined a pool of link addresses per BRAS (one /64 prefix per BRAS) and handed out one to each subscriber using ND/RA after IPv6CP had completed. To the subscriber that looked like a /128 host route, with some other arbitrary address on the far side. (We could have done it with RADIUS too, but having a static link address didn't seem particularly important.)A sub-side static /48 was then assigned via RADIUS and a route installed on the BRAS side, with DHCPv6 PD available as an option for clients who want auto-configuration rather than static config.It seemed to work. BRAS was a Juniper E-series (test box was an ERX310).
We run roughly the same, although we skip the whole globalscope address on the PPP, running localscope only works for the CPE we tested so far.
MarcoH
Current thread:
- Re: ISP customer assignments, (continued)
- Re: ISP customer assignments TJ (Oct 13)
- Re: ISP customer assignments Daniel Golding (Oct 16)
- RE: ISP customer assignments Brian Johnson (Oct 16)
- Re: ISP customer assignments Walter Keen (Oct 16)
- Re: ISP customer assignments Owen DeLong (Oct 16)
- Re: ISP customer assignments - and CIDR James R. Cutler (Oct 16)
- Re: ISP customer assignments Valdis . Kletnieks (Oct 13)
- Re: ISP customer assignments Mark Smith (Oct 13)
- Re: ISP customer assignments Matthew Petach (Oct 13)
- Re: ISP customer assignments Joe Abley (Oct 13)
- Re: ISP customer assignments Marco Hogewoning (Oct 13)
- Re: ISP customer assignments Scott Morris (Oct 13)
- Re: ISP customer assignments Michael Dillon (Oct 13)
- Re: ISP customer assignments Chris Adams (Oct 13)
- Re: ISP customer assignments Cord MacLeod (Oct 13)
- Re: ISP customer assignments James Hess (Oct 13)
- Re: ISP customer assignments Kevin Loch (Oct 13)
- Re: ISP customer assignments Leo Bicknell (Oct 13)
- Re: ISP customer assignments Chris Adams (Oct 13)
- Re: ISP customer assignments Leo Bicknell (Oct 13)
- RE: ISP customer assignments TJ (Oct 13)