Need to know which UDP Ports are open on home router and add extra if not supported

[Moya4]

Hi! Have a device for work that is not working on broadband. Work IT Support has asked me to check that specific UDP Ports are open. Is there someone I can talk to to check this please? 40 mins on phone with Sky Broadband Support got me nowhere.  

[mae-3]

@Moya4 

Generally speaking, all ports are open outgoing and only those you port forward receive traffic unless invited in by an outgoing connection.

[Moya4]

OK Great, thank you. And I should only need to follow this process to port forward on the one relevant device for it to work? 

https://helpforum.sky.com/t5/Broadband-Talk/How-to-set-up-port-forwarding/ba-p/2662260 

[mae-3]

@Moya4 

That is the correct document for doing port forwarding to a LAN device and inviting the traffic into your LAN network.

[Moya4]

Thanks again! Is there a document for non-LAN devices?

[mae-3]

@Moya4 

You don't need to do anything for an internet WAN device the traffic is allowed outgoing by default.

[mae-3]

@Moya4 

Just remember for everything to be allowed out don't block the traffic DNS-wise with Sky broadband shield. There is a document on adjusting the Sky broadband shield on the Sky site.