nanog mailing list archives
Re: IPv6 Netowrk Device Numbering BP
From: Tore Anderson <tore.anderson () redpill-linpro com>
Date: Fri, 02 Nov 2012 10:52:22 +0100
* Owen DeLong
Yes, it was pointed out to me that for some silly reason passing understanding, that syntax is supported. It's absurd, but supported. Sigh Probably we should deprecate it as it really doesn't make sense to use it that way.
It absolutely does make sense, especially in the case of IPv4/IPv6 translation. For example, when using NAT64, "64:ff9b::192.0.2.33" is an example of a valid IPv6 address that maps to 192.0.2.33. Much easier to relate to for a human than "64:ff9b::c000:221" is. Similarly, when using SIIT, the same syntax may be used in firewall rules or ACLs. So if you want to open, say, the SSH port from a trusted IPv4 address 192.0.2.33 on the far side of the SIIT gateway to your IPv6 server, it's much easier to open for "64:ff9b::192.0.2.33", and it will also make your ACL much more readable to the next guy that comes along than if you had used "64:ff9b::c000:221". Also see RFC 6052 section 2.4. -- Tore Anderson Redpill Linpro AS - http://www.redpill-linpro.com/
Current thread:
- Re: IPv6 Netowrk Device Numbering BP, (continued)
- Re: IPv6 Netowrk Device Numbering BP Owen DeLong (Nov 01)
- Re: IPv6 Netowrk Device Numbering BP Sander Steffann (Nov 01)
- Re: IPv6 Netowrk Device Numbering BP Joe Abley (Nov 01)
- Re: mail-abuse.org down? Alexander Maassen (Nov 04)
- Re: mail-abuse.org down? Suresh Ramasubramanian (Nov 04)
- Re: mail-abuse.org down? Tom Paseka (Nov 04)
- Re: IPv6 Netowrk Device Numbering BP Chip Marshall (Nov 01)
- Re: IPv6 Netowrk Device Numbering BP Owen DeLong (Nov 01)
- Re: IPv6 Netowrk Device Numbering BP Karl Auer (Nov 01)
- Re: IPv6 Netowrk Device Numbering BP Owen DeLong (Nov 01)
- Re: IPv6 Netowrk Device Numbering BP Tore Anderson (Nov 02)
- Re: IPv6 Netowrk Device Numbering BP Owen DeLong (Nov 02)
- Re: IPv6 Netowrk Device Numbering BP Tore Anderson (Nov 03)
- Re: IPv6 Netowrk Device Numbering BP Owen DeLong (Nov 03)
- Re: IPv6 Netowrk Device Numbering BP Tore Anderson (Nov 04)
- Re: IPv6 Netowrk Device Numbering BP Owen DeLong (Nov 04)
- Re: IPv6 Netowrk Device Numbering BP Tore Anderson (Nov 04)
- Re: IPv6 Netowrk Device Numbering BP Owen DeLong (Nov 04)
- Re: IPv6 Netowrk Device Numbering BP Tore Anderson (Nov 04)