nanog mailing list archives
Re: using ULA for 'hidden' v6 devices?
From: Mark Andrews <marka () isc org>
Date: Fri, 27 Jan 2012 14:11:33 +1100
In message <20120127015842.GH6332 () angus ind WPI EDU>, Chuck Anderson writes:
On Thu, Jan 26, 2012 at 07:53:18PM +0000, George Bonser wrote:Even if you don't see an advantage to GUA, can you point to a disadvantage?Just a matter of convenience. If you have a lot of management IPs or someother IP addresses that are never going to need internet access (an array of 10,000 sensors or something) you don't need to dip into your global allocatio n to address them. If it is routed within the organization but never goes to the Internet, ULA is ok. If it doesn't get routed at all, link local will d o fine. It's good to keep in mind that more things than computers with web browsers are going to get an IP address. Link-local won't do fine in many cases due to poor application compatibilty with address scopes.
Link local is a right royal pain for applications. The DNS does not support it. It requires passing arount 150 bits of address information instead of 128. -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka () isc org
Current thread:
- Re: using ULA for 'hidden' v6 devices?, (continued)
- Re: using ULA for 'hidden' v6 devices? Owen DeLong (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Jima (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Owen DeLong (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Cameron Byrne (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Cameron Byrne (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Owen DeLong (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Cameron Byrne (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Douglas Otis (Jan 26)
- RE: using ULA for 'hidden' v6 devices? George Bonser (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Chuck Anderson (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Mark Andrews (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Justin M. Streiner (Jan 25)
- Re: using ULA for 'hidden' v6 devices? Ray Soucy (Jan 25)
- Message not available
- Re: using ULA for 'hidden' v6 devices? Tim Chown (Jan 26)
- RE: using ULA for 'hidden' v6 devices? George Bonser (Jan 26)
- Message not available
- Re: using ULA for 'hidden' v6 devices? Tim Chown (Jan 26)
- RE: using ULA for 'hidden' v6 devices? George Bonser (Jan 26)
- RE: using ULA for 'hidden' v6 devices? George Bonser (Jan 26)
- Re: using ULA for 'hidden' v6 devices? Mark Tinka (Jan 27)
- Re: using ULA for 'hidden' v6 devices? Ray Soucy (Jan 26)