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Extend IP Pool
2018-07-24, 12:40
Post: #1
Extend IP Pool
Hello all,

Due an issue (runinng out of IP's) I have I would like to extend the IP pool of my Linux Ubuntu iPXE server. Now I have the range of to
If possible I would like to add a whole new range in second subnet like: to

This is how the bottom part of dhcpd.conf looks at this moment:
subnet netmask {
option subnet-mask;
option broadcast-address;
option routers;
option domain-name-servers;
if exists user-class and option user-class = "iPXE" {
      filename "boot.ipxe";
  } else {
      filename "undionly.kpxe";

I have been trying almost all possible options, but all will stop DHCP service.

Any kind of help would be great!
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2018-07-24, 16:43
Post: #2
RE: Extend IP Pool
You might be able to add a filter so that this range is in a user-class iPXE or PXEClient vendor, and then maybe add a bunch of filters to have the correct range used.
But that is mostly just a bad solution.

Also remember that the DHCP server needs to have an IP in that range, or it should be called via dhcp-relay.
And finally do check the logs and explain in details what is not working.

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