[AusNOG] FW: [Ap-ipv6tf] official shutdown date for IPv4. The date he is pushing for is April 4, 2024. "IPv4 can't go on forever, " Latour said. "

[Beeson, Ayden]

If I'm understanding the question correctly, this might answer that question:
http://packetlife.net/blog/2011/apr/18/ipv6-neighbor-discovery-high-availability/

Thanks,
Ayden Beeson

-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of James Andrewartha
Sent: Thursday, 6 November 2014 3:39 PM
To: Mark Andrews
Cc: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] FW: [Ap-ipv6tf] official shutdown date for IPv4. The date he is pushing for is April 4, 2024. "IPv4 can't go on forever, " Latour said. "

On Thu, 6 Nov 2014, Mark Andrews wrote:

> There is nothing preventing the router sending out revised
> advertisements the moment loss of connectivity is detected.  Similarly
> when it is restored.  Just because the normal state is to send these
> every 30 minutes doesn't mean that they are not sent sooner.  Remember
> they are also sent in response to a router solicitation whenever a new
> node connects to the network.

The default announcement interval is 10 minutes, the AdvDefaultLifetime is
3 * that, ie 30 minutes. Is there an RA packet that withdraws an existing route? Again, I ask if you've actually tried this in practice.

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