DHCPをインストール

# aptitude install dhcp3-server

2枚のNIC(192.168.0.9、192.168.1.9)でそれぞれでIPアドレスのリースを行う。

option domain-name "sugio-garden.com";
default-lease-time 600;
max-lease-time 7200;
authoritative;
option wpad code 252 = string;
log-facility local7;

subnet 192.168.0.0 netmask 255.255.255.0 {
        ddns-updates on;
        range 192.168.0.33 192.168.0.46;
        option domain-name-servers 192.168.0.9;
        ddns-update-style       interim;
        ddns-domainname "sugio-garden.com.";
        ddns-rev-domainname         "in-addr.arpa.";

        allow                       unknown-clients;

        zone    0.168.192.in-addr.arpa. {
                primary 192.168.0.9;
        }

        zone    sugio-garden.com. {
                primary 192.168.0.9;
        }

        option ntp-servers 192.168.0.9;
        option routers 192.168.0.9;
        option netbios-name-servers 192.168.0.9;
        option broadcast-address 192.168.0.255;
        #PROXY内容を追加
        option wpad "http://proxy.sugio-garden.com/proxy.pac";
}

subnet 192.168.1.0 netmask 255.255.255.0 {
        range 192.168.1.33 192.168.1.46;
        option domain-name-servers 192.168.1.9;
        option ntp-servers  192.168.1.9;
        option routers 192.168.1.9;
        option netbios-name-servers 192.168.1.9;
        option broadcast-address 192.168.1.255;
}
#無線LANベースに対応する。
host extream {
        hardware ethernet 00:03:93:e7:31:2f;
        fixed-address 192.168.0.25;
        option domain-name-servers 192.168.0.9;
        option ntp-servers  192.168.0.9;
        option routers 192.168.0.9;
        option broadcast-address 192.168.0.255;
}

/etc/default/dhcp3-serverを編集する。

INTERFACES="eth0 eth1"