Kleines dhcpd failover Howto

failover peer "failover-dhcp" {
  primary;
  address 10.0.0.1; 				# eigene Adresse
  port 647;							# lokaler port für sync (tcp)
  peer address 10.0.0.2;			# peer Adresse
  peer port 647;					# remote port für sync (tcp)
  max-response-delay 60;
  max-unacked-updates 10;
  mclt 3600;						# maximum client lead time
  split 128; # 128 is balanced; use 255 if primary is 100% responsible until failure
  load balance max seconds 3;
}

include "/etc/dhcp/dhcpd.master";

failover peer "failover-dhcp" {
  secondary;
  address 10.0.0.2;
  port 647;
  peer address 10.0.0.1;
  peer port 647;
  max-response-delay 60;
  max-unacked-updates 10;
  load balance max seconds 3;
}

include "/etc/dhcp/dhcpd.master";

ddns-update-style none;
default-lease-time 6000;
max-lease-time 28800;
authoritative;
log-facility local7;

subnet 10.0.0.0 netmask 255.255.255.0 {
    option routers 10.0.0.1;
    option domain-name-servers 10.0.0.1, 10.0.0.2;
    option broadcast-address 10.0.0.255;
    option subnet-mask 255.255.255.0;
    option domain-name "lan.local";
    option domain-search "lan.local";
    option time-servers ntp.lan.local;

    pool {
        failover peer "failover-dhcp";
        range 10.0.0.10 10.0.0.254;
    }
}

# Exemplarisches Beispiel für statische IP-Zuweisung
host server {
    hardware ethernet XX:XX:XX:XX:XX:XX;
    fixed-address 10.0.0.7;
    option host-name "server";
}