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I have a isc-dhcpd server with dhcp-range - There is also a device connected with static ip What would happen when a client with dynamic ip connects to the network?

What if I changed the static ip to, and connect the client with the dynamic ip?

Thanks in advance

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So you have a subnet declaration... Presumably (or /24, I suppose).

And you have a subnet range inside the subnet declaration, of


subnet netmask {

And then you have a static IP declaration, presumably like

group {
host static-host {
    hardware ethernet 1a:6b:6a:32:a5:01;

So the next available address that the DHCPd knows about is .11

The dhcp server will never hand out an address to a dynamic client where the fixed-address is specified elsewhere with a hardware ethernet address.

You should be able to change the static-host's declaration to change the fixed-address, restart the dhcp server, and then rebind any dynamic clients. They address may change (if they had either .10 or .20), but if they were in the range .11 to .19, their address may not change.

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