DHCP server otevira port navic

Mam server (Debian 7) , na keterem ted spoustim sluzbu dhcp server. Nevim proc, ale otevira dva porty jeden standartni 67 na udp a druhy nahodny z rozsahu nad 1024.

udp        0      0 0.0.0.0:67              0.0.0.0:*                           18952/dhcpd
udp        0      0 0.0.0.0:30478           0.0.0.0:*                           18952/dhcpd

dhcpd.conf


authoritative;

ddns-update-style                       none;
option domain-name-servers      192.168.1.1, 8.8.8.8;
default-lease-time                      600;
max-lease-time                          600;


subnet 192.168.1.0 netmask 255.255.255.0 {
            option routers                              192.168.1.128;
                option broadcast-address        192.168.1.255;
                option subnet-mask                      255.255.255.0;
}

Dotaz: DHCP server otevira port navic

Odpovědi