dhcp클라이언트접속속도향상

redhat4에서dhcp를 이용해서 dhcp를 사용하고 있습니다.

클라인언트가 자동으로 할당받아오는데 약 5초정도에 시간이 걸립니다

좀더 단축할수 있는 방법이 없나요

dhcpd.conf설정내용

ddns-update-style interim;
ignore client-updates;

subnet 192.168.0.0 netmask 255.255.255.0 {

# --- default gateway
        option routers                  192.168.0.1;
        option subnet-mask              255.255.255.0;
        option broadcast-address        192.168.0.255;
        option domain-name-servers      192.168.0.1;
        option domain-name              "private";

        option time-offset              -18000; # Eastern Standard Time

        range dynamic-bootp 192.168.0.100 192.168.0.110;
        default-lease-time 21600;
        max-lease-time 43200;

        # we want the nameserver to appear at a fixed address
}