I have received a letter suggestion I block ports 161 & 162 on my router. In the letter it provides a link to a completley useless page which is supposed to tell you how to do this. It states
Access your Hub's configuration page - default web address: 192.168.0.1
Login with your username and password, default will be shown on the Hub itself
Select Advanced Settings
Select Port Blocking
Select Predefined Rule Service
Enter: 161 & 162
Now I have done this but I am presented with the following
Service - drop down with a load of options - which one do I select?
Start port - I assume I enter 161 here
End port - I assume I enter 162 here
Protocol - drop down with TCP / UDP or TCP&UDP as options - which one do I select?
IP Address which is set to 192.168.0. and I can fill in the last
The support page simply states select predefined rule service which appears to bear no relation to the options available to me.
Can anyne please help?
Make sure you've blocked UPnP at your Internet gateway (router). Specifically configure your firewall to block any system from outside your LAN from accessing port 1900/UDP, and if you have any Windows systems also block port 2869/TCP.
Ports 161 and 162 are used for SNMP,.Why it has been suggested you block them with regard to a potential SSDP vulnerability seems strange.