[CentOS] DHCP static hosts and subnet configuration
Marcus Moeller
mm at gcug.de
Wed Oct 15 18:49:20 UTC 2008
Dear Paul.
> You can assign multiple host blocks for the same NIC, using a fixed-address
> directive in one but not in other. dhcpd will try for the best match. If the
> request arrives from subnet-B, and the fixed address is on that net, then
> that's the block that gets used. Otherwise, the less specific block will be
> used. E.g.,
>
> host myhost {
> hardware ethernet 11:22:33:44:55:66;
> fixed-address 172.16.1.1;
^^ modified
> }
> host myhost-roam {
> hardware ethernet 11:22:33:44:55:66;
> }
Hmm, that does not really work on two different subnets. I have tried
to add a host declaration with fixed-address on the 'static' Subnet B
and one on the dynamic Subnet A with just the MAC address and
ddns-domain-name.
The client won't obtain an IP address on subnet A unless I add a
fixed-address declaration to it, too.
Marcus
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