High Availability DHCP services
dhcpd.conf 10.10.0.10
# Global Options option domain-name "example.com"; option domain-name-servers 10.10.0.10,10.10.0.11; option tftp-server-name "10.10.0.10"; option time-servers 10.10.0.10,10.10.0.11; option ntp-servers 10.10.0.10,10.10.0.11; option time-offset -25200; default-lease-time 86400; ddns-update-style interim; max-lease-time 86400; authoritative; ddns-update-style none; option sip-servers-name code 120 = text; failover peer "dhcp" { primary; address 10.10.0.10; port 520; peer address 10.10.0.11; peer port 521; max-response-delay 60; max-unacked-updates 10; mclt 600; split 128; load balance max seconds 3; } include "/etc/dhcpd.master";
dhcpd.master 10.10.0.10
# Global Options option domain-name "example.com"; option domain-name-servers 10.10.0.10,10.10.0.11; option tftp-server-name "10.10.0.10"; option time-servers 10.10.0.10,10.10.0.11; option ntp-servers 10.10.0.10,10.10.0.11; option time-offset -25200; default-lease-time 86400; ddns-update-style interim; max-lease-time 86400; authoritative; ddns-update-style none; option sip-servers-name code 120 = text; subnet 10.10.0.10 netmask 255.255.255.0 { } # eth1 - SALES # subnet 10.10.1.0 netmask 255.255.255.0 { pool { failover peer "dhcp"; range 10.10.1.2 10.10.1.254; deny dynamic bootp clients; default-lease-time 43200; max-lease-time 43200; option routers 10.10.1.1; option subnet-mask 255.255.255.0; option domain-name "example.com"; option tftp-server-name "10.10.1.10"; option sip-servers-name "sipx1.example.com:12000/cmcprov/login"; option domain-name-servers 10.10.0.10; option ntp-servers 10.10.0.10; group { next-server sipx1.example.com; # TFTP serve host information_systems_fxs_1 { hardware ethernet 00:00:00:00:00:00; fixed-address 10.10.1.16; } } } }