When a static mapping is defined with the same address as the range stop address, the above error is thrown on commit.
dhcp-server { shared-network-name test-pool { subnet 10.1.2.0/24 { default-router 10.1.2.1 lease 86400 range 0 { start 10.1.2.100 stop 10.1.2.199 } static-mapping one { ip-address 10.1.2.199 mac-address aa:bb:cc:dd:ee:ff } } }