RHEL DHCP續(xù)租問題

jy02586751

配置如下，我的DHCP服務(wù)器租約到期無法續(xù)租，請問是否是因為default-lease-time和max-lease-time設(shè)成一樣有關(guān)？求解
ddns-update-style interim;
ignore client-updates;

subnet 172.17.220.0 netmask 255.255.255.0 {

        option routers                        172.17.220.254;
        option subnet-mask                255.255.255.0;
        option domain-name-servers        202.110.201.4;
        option time-offset                -18000;        # Eastern Standard Time
        range dynamic-bootp 172.17.220.21 172.17.220.230;
        default-lease-time 43200;
        max-lease-time 43200;
}