Question

Which ports are required to play GTA IV via the PS3 Network?

Answer

In order to play GTA IV via the PS3 network you will need to open the following ports on your router or modem:

UDP ports: 

6672, 28900

TCP ports: 

8001, 27900

For access to the Playstation Network the following ports are used:

TCP ports: 

80 HTTP, 8080 HTTP, 443 HTTPS, 5223 JABBER, 3478, 3479, 3480

UDP ports 

3478, 3479

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