zone e23-4.tg15.gathering.org { primary 127.0.0.1; key DHCP_UPDATER; } subnet 151.216.138.192 netmask 255.255.255.192 { option subnet-mask 255.255.255.192; option routers 151.216.138.193; option domain-name "e23-4.tg15.gathering.org"; ddns-domainname "e23-4.tg15.gathering.org"; range 151.216.138.196 151.216.138.254; }