dhcp-server: T2669: do not allow overlapping ranges to be created
set service dhcp-server shared-network-name NET01 authoritative
set service dhcp-server shared-network-name NET01 subnet 10.0.0.0/24 default-router '10.0.0.1'
set service dhcp-server shared-network-name NET01 subnet 10.0.0.0/24 lease '86400'
set service dhcp-server shared-network-name NET01 subnet 10.0.0.0/24 range RNG01 start '10.0.0.60'
set service dhcp-server shared-network-name NET01 subnet 10.0.0.0/24 range RNG01 stop '10.0.0.70'
set service dhcp-server shared-network-name NET01 subnet 10.0.0.0/24 range RNG02 start '10.0.0.55'
set service dhcp-server shared-network-name NET01 subnet 10.0.0.0/24 range RNG02 stop '10.0.0.65'
Will result in a dhcpd.conf:
shared-network NET01 {
authoritative; subnet 10.0.0.0 netmask 255.255.255.0 { option routers 10.0.0.1; default-lease-time 86400; max-lease-time 86400; range 10.0.0.60 10.0.0.70; range 10.0.0.55 10.0.0.65; } on commit { set shared-networkname = "NET01"; }
}
This is not allowed by ISC DHCPd:
dhcpd[3307]: /run/dhcp-server/dhcpd.conf line 25: lease 10.0.0.63 is declared twice!
dhcpd[3307]: range 10.0.0.55 10.0.0.65;
(cherry picked from commit b0e1c8a9c9ef470297bf3c9f5059ad7c720c46ff)