Currently our network's DHCP is handled by the hardware belonging to our ISP. I'm trying to implement an Ubuntu 18.04 server running ISC-DHCP-Server.
Our network currently has the following subnets on it.
10.11.4.0/24
10.11.5.0/24
10.11.6.0/24
10.11.7.0/24
RouterA is providing the first two. RouterB is providing the second two. They are both up and running competing for addresses by which device accepts them first. our ISP says that this is a good failover option. Whatever. I don't care it's worked so far.
I'm trying to set up my server to provide addresses:
10.11.8.0/24
10.11.9.0/24
So far I've only been able to get the ISC-DHCP-SERVER running when I have a single static IP on one interface and provide a pool/range that is on the same subnet as the static IP. Are multiple subnets beyond the scope of what ISC-DHCP-SERVER is made to do? Or have I just not hit on the correct documentation. I've tried many things, multiple subnet/network definitions in /etc/dhcp/dhcpd.conf, multiple static IPs on the same interface. I know that my two networks that I'm trying to provide DHCP for are valid in our environments because they work when i use various address as static on different workstations.
I'm wanting to make it so I can have the ISP remove the old subnets/networks from their devices and add it to ours.
any good documentation for this? and direction you can recommend? Or maybe i'm just going about things in a wrong thinking way and need to realign.
What do you think?
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