nanog mailing list archives
Re: what about 48 bits?
From: Larry Sheldon <LarrySheldon () cox net>
Date: Mon, 05 Apr 2010 18:28:09 -0500
On 4/5/2010 15:36, Jon Lewis wrote:
On Sun, 4 Apr 2010, A.B. Jr. wrote:Hi, Lots of traffic recently about 64 bits being too short or too long. What about mac addresses? Aren't they close to exhaustion? Should be. Or it is assumed that mac addresses are being widely reused throughout the world? All those low cost switches and wifi adapters DO use unique mac addresses?Since they only really need to be unique per broadcast domain, it doesn't really matter. You can I could use the same MAC addresses on all our home gear, and never know it. For manufacturers, it's probably reasonably safe to reuse MAC addresses they put on 10mbit ISA ethernet cards...if they were a manufacturer back then.
Seems like they have be unique within a DHCP "domain". And you'd have to pretty much outlaw mobiles. Wouldn't you? (Is there an accepted bit of nomenclature for all of the networks that forward DHCP traffic to a given cluster of servers?) -- Democracy: Three wolves and a sheep voting on the dinner menu. Requiescas in pace o email Ex turpi causa non oritur actio Eppure si rinfresca ICBM Targeting Information: http://tinyurl.com/4sqczs http://tinyurl.com/7tp8ml
Current thread:
- Re: what about 48 bits?, (continued)
- Re: what about 48 bits? Scott Howard (Apr 04)
- Re: what about 48 bits? Larry Sheldon (Apr 04)
- Re: what about 48 bits? Kevin Oberman (Apr 04)
- Re: what about 48 bits? James Hess (Apr 04)
- Re: what about 48 bits? Jon Lewis (Apr 05)
- Re: what about 48 bits? Valdis . Kletnieks (Apr 05)
- Re: what about 48 bits? Patrick W. Gilmore (Apr 05)
- Re: what about 48 bits? Valdis . Kletnieks (Apr 05)
- Re: what about 48 bits? joel jaeggli (Apr 05)
- Re: what about 48 bits? Jon Lewis (Apr 06)
- Re: what about 48 bits? Valdis . Kletnieks (Apr 05)
- Re: what about 48 bits? Larry Sheldon (Apr 05)
- Re: what about 48 bits? Mark Smith (Apr 04)
- Re: what about 48 bits? Jim Burwell (Apr 04)
- Re: what about 48 bits? Jorge Amodio (Apr 04)
- Re: what about 48 bits? Steven Bellovin (Apr 04)
- Re: what about 48 bits? Jorge Amodio (Apr 04)
- Re: what about 48 bits? Joe Greco (Apr 07)