nanog mailing list archives
Re: Using /126 for IPv6 router links
From: Ryan Harden <hardenrm () uiuc edu>
Date: Mon, 25 Jan 2010 13:23:42 -0600
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Our numbering plan is this: 1) Autoconfigured hosts possible? /64 2) Autoconfigured hosts not-possible, we control both sides? /126 3) Autoconfigured hosts not-possible, we DON'T control both sides? /64 4) Loopback? /128 Within our /48 we've carved it into (4) /50s. * First, Infrastructure. This makes ACLs cake. ** Within this /50 are smaller allocations for /126s and /128s and /64s. * Second, User Subnets (16k /64s available) ** All non-infrastructure subnets are assigned from this pool. * Third, Reserved. * Fourth, Reserved. We believe this plan gives us the most flexibility in the future. We made these choices based upon what works the best for us and our tools and not to conserve addresses. Using a single /64 ACL to permit/deny traffic to all ptp at the border was extremely attractive, etc. - -- Ryan M. Harden, BS, KC9IHX Office: 217-265-5192 CITES - Network Engineering Cell: 217-689-1363 2130 Digital Computer Lab Fax: 217-244-7089 1304 W. Springfield email: hardenrm () illinois edu Urbana, IL 61801 University of Illinois at Urbana/Champaign - AS38 University of Illinois - ICCN - AS40387 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktd77sACgkQtuPckBBbXbpI1QCcCHBU8XcxqTAKDy4SbElfpH7L VlYAoMkhFKHPeIAXb3vepXYDLdgVAmFA =H3uZ -----END PGP SIGNATURE-----
Current thread:
- Re: Using /126 for IPv6 router links, (continued)
- Re: Using /126 for IPv6 router links Valdis . Kletnieks (Jan 24)
- Re: Using /126 for IPv6 router links Steven Bellovin (Jan 24)
- Re: Using /126 for IPv6 router links Mark Smith (Jan 24)
- Re: Using /126 for IPv6 router links Rubens Kuhl (Jan 24)
- Re: Using /126 for IPv6 router links Andy Davidson (Jan 25)
- Re: Using /126 for IPv6 router links Richard A Steenbergen (Jan 25)
- RE: Using /126 for IPv6 router links TJ (Jan 25)
- Re: Using /126 for IPv6 router links Richard A Steenbergen (Jan 25)
- RE: Using /126 for IPv6 router links TJ (Jan 25)
- Re: Using /126 for IPv6 router links Tim Durack (Jan 25)
- Re: Using /126 for IPv6 router links Ryan Harden (Jan 25)
- Re: Using /126 for IPv6 router links Tim Durack (Jan 25)
- Re: Using /126 for IPv6 router links Nathan Ward (Jan 25)
- Re: Using /126 for IPv6 router links Tim Durack (Jan 26)
- Re: Using /126 for IPv6 router links Mark Smith (Jan 25)
- RE: Using /126 for IPv6 router links TJ (Jan 25)
- Re: Using /126 for IPv6 router links Kevin Oberman (Jan 25)
- Re: Using /126 for IPv6 router links Mark Smith (Jan 25)
- Re: Using /126 for IPv6 router links Jim Burwell (Jan 25)
- RE: Using /126 for IPv6 router links TJ (Jan 26)
- Re: Using /126 for IPv6 router links Tim Durack (Jan 26)