という構成。設定ファイルは以下のような感じ。まずはprimary側。
[primary側の /etc/dhcpd.conf] ddns-update-style none; one-lease-per-client true; option domain-name-servers 192.168.1.100; option subnet-mask 255.255.255.0; default-lease-time 900; max-lease-time 900; authoritative; failover peer "hoge" { primary; address 192.168.1.10; port 519; peer address 192.168.1.20; peer port 520; max-response-delay 60; max-unacked-updates 10; mclt 600; split 128; load balance max seconds 3; } include "/etc/dhcpd.master";
で、次はsecondary側。
[secondary側の /etc/dhcpd.conf] ddns-update-style none; one-lease-per-client true; option domain-name-servers 192.168.1.100; option subnet-mask 255.255.255.0; default-lease-time 900; max-lease-time 900; authoritative; failover peer "hoge" { secondary; address 192.168.1.20; port 520; peer address 192.168.1.10; peer port 519; max-response-delay 60; max-unacked-updates 10; load balance max seconds 3; } include "/etc/dhcpd.master";
で、あとは共通部分。
[primary側、secondary側の /etc/dhcpd.master] subnet 192.168.1.0 netmask 255.255.255.0 { option routers 192.168.1.1; option domain-name-servers 192.168.1.100; pool { deny dynamic bootp clients; failover peer "hoge"; range 192.168.1.101 192.168.1.254; } }みたいな感じで書くとシアワセにDHCPサーバしてくれます☆
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