0
votes
1answer
160 views

Can NAT port change dynamically in an active session?

I am facing an issue, having client server application where client application is sending UDP data frequently to server and server redirecting back to the client. But in a few cases I am not getting ...
-1
votes
1answer
380 views

NAT UDP Hole punching beginner's basic Qn

Is there any simple example of UDP-NAT hole punching, capable of hole punching for 2 peers communication via internet? I am trying to do UDP hole punching so that it would be possible to NAT ...
0
votes
3answers
571 views

Sending a UDP message to a computer inside a network

Say I have the ip and mac address of a computer inside a network and I wish to send him a UDP message. By initializing the mac and ip addresses of the sent message to the given, when the network ...
1
vote
1answer
148 views

What does it mean that most dropped packets have a different incoming and outgoing port?

Over the weekend an internet-facing DI-624 router of mine was e-mailing me logs like crazy for some reason. Normally it's a few a day, but it was about one every few minutes instead. Analyzing the ...
2
votes
2answers
4k views

UDP traversal through router automatically without router port forwarding?

Everyone knows the router is working like a firewall. Without port forwarding, a connection (no matter TCP or UDP) cannot be initiated from outside of the router. However, if a user initiate a TCP ...
31
votes
11answers
21k views

What is the difference between UDP and TCP?

My router has two protocols (and a "both" option) that I can select when setting up port forwarding: UDP and TCP. What is the difference between these two protocols and when would you select one over ...