[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]

It is a good question, if anybody here has tried it at scale I'd like to know as well.

I've spent long enough around all sorts of client device support issues to know the results are likely to vary wildly, especially with the relatively new support for IPv6 most devices have.

Thanks,
Ayden Beeson

-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Paul Gear
Sent: Thursday, 6 November 2014 4:19 PM
To: 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. "

Nice little lab test, but I'd like to see some more real-world examples.  I'm curious to know how many clients will actually honour that 1 second RA lifetime and/or what sort of load or other symptoms it might create.  It also means troubleshooting routing tables on every client rather than on the first hop gateways.

Paul

On 06/11/14 15:01, Beeson, Ayden wrote:
> If I'm understanding the question correctly, this might answer that question:
> http://packetlife.net/blog/2011/apr/18/ipv6-neighbor-discovery-high-av
> ailability/
>
> 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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