What is the official range of Gnutella port numbers?

Here are some of the Port connections in LW 6346,6347,6348,6349,6350. That I have allowed. because traffic has found me on these numbers.

Should all ports have both TCP and UDP enabled?

Other attempted connections to see ports 0, 8080, 6355, 6359, 6375, 1248 I have not allowed

Where is there a good source for finding technical informaton on Gnutella? Most of the information I find is quite light in this subject.

Thanks for your support.

LW 224pro user