DHCPv4: Allow to create IP pools outside of the directly connected subnets

[tofazzz]

Hi all,

Since isc-dhcp44-server-4.4.2_1 supports the feature to configure IP pool outside of a directly connected subnet, it would be possible to have the feature in OPNsense as well?

In order to enable the functionality we just need to add an empty pool for the directly connected subnet:

subnet XXX.XXX.XXX.XXX netmask XXX.XXX.XXX.XXX {
}

Then it'll be possible to create IP pools for other networks.

Since after the change OPNsense's DHCPv4 will be handling different pool leases, I think it would be needed to reorganize the leases page and divide them in each configured subnet.

Also, if it would be possible to add to the lease counter the total IP configured in a pool (i.e. 5/100) instead of just displaying (5) it would be awesome.

Thank you for your hard work!
tofaz

[tofazzz]

What's incomplete?

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