[AusNOG] (Probably a bit OT) IPv6 oddity

[Jamie Lovick]

I've seen those Optus branded Netgear cable routers stop handing out DHCP
to the local network, but will continue to route just fine. Typically, if
there is bad power (brownouts, etc.), this can happen.

Jamie

On Tue, 15 Oct 2019 at 3:05 pm, Karl Auer <kauer at biplane.com.au> wrote:

> Had an interesting (to me) case last week. Client rang on his mobile to
> say his phones didn't work and also he couldn't get to his bank or
> anything else - except Google. Also, I found I was able to use
> TeamViewer to access one of his PCs.
>
> He's on NBN over FTTC (or maybe FTTN) with Telstra.
>
> Turned out his Telstra router was supplying a valid prefix to
> autoconfigure IPv6 addresses in, but it was not supplying IPv4
> addresses via DHCP. Reset the router and it all came good.
>
> This is the first time I've seen this in the wild where it was not a
> misconfiguration (though I'm the first to admit that "the wild" is more
> of an inoffensive thicket in my case). Is it more common than I think?
>
> Regards, K.
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Karl Auer (kauer at biplane.com.au)
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Jamie Lovick <-> IT Consultant <-> AU <-> +61-4-1479-1681
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