Comment 62 for bug 1176046

I installed isc-dhcp-client-noddns from trusty-proposed and I don't get the two random extra high ports anymore:

Before:

# dpkg -l | grep isc-dhcp-
ii isc-dhcp-client 4.2.4-7ubuntu12.9 amd64 ISC DHCP client
ii isc-dhcp-common 4.2.4-7ubuntu12.9 amd64 common files used by all the isc-dhcp* packages

# netstat -anputa | grep -i dhclient
udp 0 0 0.0.0.0:68 0.0.0.0:* 716/dhclient
udp 0 0 0.0.0.0:42496 0.0.0.0:* 716/dhclient
udp6 0 0 :::7781 :::* 716/dhclient

After:

# dpkg -l | grep isc-dhcp-
ii isc-dhcp-client 4.2.4-7ubuntu12.10 amd64 ISC DHCP client
ii isc-dhcp-client-noddns 4.2.4-7ubuntu12.10 amd64 Dynamic DNS (DDNS) disabled DHCP client
ii isc-dhcp-common 4.2.4-7ubuntu12.10 amd64 common files used by all the isc-dhcp* packages

# netstat -anputa | grep -i dhclient
udp 0 0 0.0.0.0:68 0.0.0.0:* 13411/dhclient

And if I remove the isc-dhcp-client-noddns package, I get the 2 random ports again:

# dpkg -l | grep isc-dhcp-
ii isc-dhcp-client 4.2.4-7ubuntu12.10 amd64 ISC DHCP client
ii isc-dhcp-common 4.2.4-7ubuntu12.10 amd64 common files used by all the isc-dhcp* packages

# netstat -anputa | grep -i dhclient
udp 0 0 0.0.0.0:68 0.0.0.0:* 565/dhclient
udp 0 0 0.0.0.0:63510 0.0.0.0:* 565/dhclient
udp6 0 0 :::44100 :::* 565/dhclient

Looks good to me.