From: zsd@jdvb.ca
On 2025-12-29 at 19:48 AST, Pancho wrote:
> On 12/27/25 23:25, Theo wrote:
>> Jim Diamond wrote:
>>> I was looking at my network and discovered an IP which I didn't know about;
>>> after a few seconds of investigation I discovered that one of my Pis (which
>>> is on wifi only, and only has one wifi card) has two IPs.
>>>
>>> Two of my other Pis are running the same version of Raspberry Pi OS (i.e.,
>>> "Debian GNU/Linux 12 (bookworm)"). They don't do this.
>>>
>>> Looking around the net, there are claims that this is because Pis might try
>>> to netboot, and that later on in the boot process they also get their usual
>>> IP the "usual" way. (In my case I am using networkmanager.)
>>>
>>> I can't imagine what I did to make one of my Pis want to (try to) netboot.
>>>
>>> Has anyone here seen this, and, if so, know what grievous sins I have
>>> committed to make this happen? And how to make it stop?
>>
>> Is this two IPv4 addresses? Having multiple IPv6 addresses is completely
>> routine. As is having one IPv4 and one or more IPv6s.
>>
>
> Yes, I have recently been experimenting with IPv6.
>
> IPv6 uses: Static Addresses, Link-Local, DHCPv6, Router Advertisements,
> and SLAAC. Proving me with multiple, often random, IPv6 addresses. This
> totally broke my IP rule based routing.
>
> Unlike my Linux machines, My Android devices take a whole IPv6 block
> (prefix delegation). I think I'll change all my Linux hosts to this too.
> I quite like the protection of random addresses, but want them
> constrained to a recognisable range for each host.
>
> Some websites fail, some apt repos fail under IPv6.
>
> IPv6 seems like a world of pain.
Did someone say "new and improved" ? ;-)
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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