moving subnet to another server

Dana Huggard dana.huggard at
Fri Jan 9 18:33:12 UTC 2015


I'm planning on moving a subnet over to another server and am not sure what
kind of devil hides in the details.

The subnet is 10.x.x.0/18 and it is very busy. Its a subnet devoted to a
test harness of servers that go up and down a lot putting a big load on
dhcpd and named (using ddns).

Along with the dhcpd change the new dhcp server will also serve as a dns
server for a new domain.

To implement the move I have a new dhcp server I plan to remove the subnet
declaration from dhcpd.conf off the old server, add it to the new server,
then restart dhcpd on the old server, and start dhcpd on the new server.

What I am wondering about is what to expect for the behaviour of the dhcp
clients. How disruptive might this be?

Thank you.
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