network security

Wi 7x64   Belkin Surf N300
Hello
Please advise:
control panel>network and internet>view network  computers and devices>router >properties>settings>services>select the services on the network that network users can access>Skype TCP, Skype UDP,  and Teredo are listed AND checked.

Is this a secure setting that my Belkin router or Norton Security Suite  set up, or is there a problem?
Thank you
Peter