nanog mailing list archives
Re: IPv6 Addressing Help
From: David Freedman <david.freedman () uk clara net>
Date: Fri, 14 Aug 2009 17:45:29 +0100
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Jon Lewis wrote:
On Fri, 14 Aug 2009, David Freedman wrote:Will keep it simple, this is what I (and I suspect many others) do /128 - Loopback (what else?) /126 - Router p2p /112 - Router LAN shared segments (p2mp)Why even go that big on LAN segments? i.e. If you have a LAN/VLAN where you have say 20 devices (routers, switches, etc.) and know you'll never have more than say 50-100 devices, why not go as far as using a /120?
Actually, this is where I start to move from "conserve addressing the good old way (tm)" to "Make it look readable" $ sipcalc 2001:dbb::/64 --v6split=112 | grep \: | head -n9 - -[ipv6 : 2001:dbb::/64] - 0 Network - 2001:0dbb:0000:0000:0000:0000:0000:0000 - 2001:0dbb:0000:0000:0000:0000:0000:ffff Network - 2001:0dbb:0000:0000:0000:0000:0001:0000 - 2001:0dbb:0000:0000:0000:0000:0001:ffff Network - 2001:0dbb:0000:0000:0000:0000:0002:0000 - 2001:0dbb:0000:0000:0000:0000:0002:ffff Network - 2001:0dbb:0000:0000:0000:0000:0003:0000 - 2001:0dbb:0000:0000:0000:0000:0003:ffff -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkqFlKgACgkQtFWeqpgEZrJsGwCdEUcD99wpMhKvWVmxv3rogMk+ 9V8An3uXswYKdE6B5Ab3AdYPTrK6otfy =xVBB -----END PGP SIGNATURE-----
Current thread:
- Re: IPv6 Addressing Help, (continued)
- Re: IPv6 Addressing Help Chris Gotstein (Aug 14)
- Re: IPv6 Addressing Help Roland Dobbins (Aug 14)
- RE: IPv6 Addressing Help TJ (Aug 14)
- Re: IPv6 Addressing Help Jeroen Massar (Aug 14)
- Re: IPv6 Addressing Help David Freedman (Aug 14)
- Re: IPv6 Addressing Help Owen DeLong (Aug 14)
- Re: IPv6 Addressing Help Randy Bush (Aug 14)
- Re: IPv6 Addressing Help Larry Blunk (Aug 14)
- Re: IPv6 Addressing Help Randy Bush (Aug 14)
- Re: IPv6 Addressing Help Jon Lewis (Aug 14)
- Re: IPv6 Addressing Help David Freedman (Aug 14)
- Re: IPv6 Addressing Help Mark Smith (Aug 15)
- Re: IPv6 Addressing Help Randy Bush (Aug 15)
- Re: IPv6 Addressing Help Mark Smith (Aug 15)
- Re: IPv6 Addressing Help Jack Bates (Aug 17)
- Re: IPv6 Addressing Help Mark Andrews (Aug 14)
- RE: IPv6 Addressing Help David Freedman (Aug 14)
- Re: IPv6 Addressing Help steve ulrich (Aug 14)