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Today's Topics:
1. Re: isc-dhcp 4.4.2-p1 shared-network confusion (Simon Hobson)
----------------------------------------------------------------------
Message: 1
Date: Thu, 07 Jul 2022 07:39:11 +0100
From: Simon Hobson <dh...@thehobsons.co.uk>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: isc-dhcp 4.4.2-p1 shared-network confusion
Message-ID: <f07752c6-1bfb-4678-a044-b38b636ab...@thehobsons.co.uk>
Content-Type: text/plain; charset=utf-8
Philippe Maechler <plcmaech...@gmail.com> wrote:
>> Yes, but ...
>> If (say) the GI-Addr is 20.1.0.1 then ONLY shared-network xyz is a
>candidate. The other subnets and shared-networks are irrelevant as the
>GI-Addr is not within any of them. It?s as simple as that.
>
>What if the GI-Addr is something completely different like 140.1.0.1?
Ah, then 140.1.0.1 must be within the shared network that defines the client
subnet(s). So something like :
shared-network "blah" {
subnet 140.1.0.0 255.255.255.252 {
}
subnet 192.168.1.0 255.255.255.0 {
blah blah options
range blah;
}
}
That allows the server to see 140.1.0.1, associate that address with a shared
network, and thus find the pools/ranges it can allocate to clients.
And in case you hadn't realised, you can't use the same GI-Addr in more than
one shared network. If you do, then the server can't use it to select a unique
shared network.
Simon
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