nanog mailing list archives
Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses)
From: Karl Auer <kauer () biplane com au>
Date: Wed, 03 Nov 2010 00:25:34 +1100
On Tue, 2010-11-02 at 23:23 +1030, Mark Smith wrote:
Prefix lifetimes don't work that way - there is no such thing as a "flash" renumbering.
The lifetimes are reset with every RA the nodes see. If I reconfigure my router to start sending out RAs every N seconds, it will take a a maximum of N seconds for a new preferred lifetime to be established on all active nodes on the link. If the new preferred lifetime is zero, any addresses in the prefix will be deprecated immediately, causing other prefixes on the link to be preferred. The new valid lifetime will be the remaining valid lifetime (if less than two hours), the newly advertised valid lifetime (if using SEND), or two hours in all other cases. That seems pretty close to "flash renumbering"... at least for SLAAC. DHCPv6 needs more planning. Regards, K. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Karl Auer (kauer () biplane com au) +61-2-64957160 (h) http://www.biplane.com.au/kauer/ +61-428-957160 (mob) GPG fingerprint: B386 7819 B227 2961 8301 C5A9 2EBC 754B CD97 0156 Old fingerprint: 07F3 1DF9 9D45 8BCD 7DD5 00CE 4A44 6A03 F43A 7DEF
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Current thread:
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses), (continued)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Christopher Morrow (Nov 01)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Jason Iannone (Nov 01)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Stephen Sprunk (Nov 01)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Tim Franklin (Nov 01)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Tim Franklin (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Karl Auer (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Owen DeLong (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Karl Auer (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Owen DeLong (Nov 03)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Karl Auer (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Mark Smith (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Karl Auer (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Mark Smith (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Sven Olaf Kamphuis (Nov 02)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Mark Smith (Nov 03)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Leen Besselink (Nov 02)