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seen Nov 30 at 6:01

Jan
22
comment What is the purpose of ports?
Found a very clear answer: stackoverflow.com/questions/3329641/…
Jan
22
comment What is the purpose of ports?
Ok so a program request connection with another computer when it directs data to, say, port 80; Then that computer has a program that's listening to port 80 who's function is to transfer the connection it makes to one of the machines open ports. Is that right? How does the computer requesting connection get the new port number it's connected to?
Jan
22
comment What is the purpose of ports?
Looking at the 2nd to last answer, does the router check the port numbers and send an error back if it's invalid? Looking at the 3rd to last answer, does the program requesting it take and handle the data, or the operating system? And to clarify your last answer, you can get around the limitation by creating a sub-port system with a server, and requesting connections from the server? Do servers add their own data to the stack before sending it, so incoming data can distinguished?
Jan
22
comment Hardware/Software behind IP/TCP layers encapsulation
This is ISO, not IP/TCP but this explains everything just as well =)! One last question though. How is a pathway of gateways found for the packet to travel? Is there some sort of server software that is aware of every gateways position, as so it can make the best path to the destination?
Jan
22
awarded  Supporter
Jan
22
awarded  Scholar
Jan
22
comment Hardware/Software behind IP/TCP layers encapsulation
"the layers are not distributed among network hosts/devices" doesn't server software / routers apply their own layers? Mac addresses change between every hop for instance. My Windows operating system doesn't apply every layer down to the physical layer does it?
Jan
22
accepted Hardware/Software behind IP/TCP layers encapsulation
Jan
22
asked What is the purpose of ports?
Jan
22
asked Hardware/Software behind IP/TCP layers encapsulation
Dec
18
awarded  Student