Port forwarding without acces to telenet router/modem combination acces while using ethernet.

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Tom_The_Hero1

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Mar 20, 2016
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I don't have acces to my router/modem combination from telenet(a internet provider in belgium) but i want to port forward a port while using a realtek ethernet adapter.
So does anyone know a good way to do this?
 
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L
if router has uPnP enabled, you generally don't need to do port forwarding. If you are having problems though, it's not enabled and since you can't access it, you can't change it.

Setting up FTP server doesn't really care if it's on Wifi or Lan, connections still need to be forwarded. As for the port, you usually use same port both inside and outside of router, not that you have to but.. it's usually easier.

The tcp vs udp thing is best read yourself:
http://www.diffen.com/difference/TCP_vs_UDP

Basically TCP needs to be sent and received in order, UDP can be sent and received in any order.
so if you send packets in order 1-2-3-4-5
TCP throws a fit if they arrive in any other order
UDP doesn't care if they arrive in same order or...
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USAFRet

USAFRet

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Port forwarding happens at the border device. The modem/router you have from the ISP.
Without access to that, you are out of luck.
 
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little_me

Splendid
May 9, 2015
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There are two ways to connect in games:
First off, port forwarding is necessary due to routers doing Network Address Translation (or NAT) and having their own private IP range on the inside (usually 192.168.x.x)
NAT allows connections from inside to go out and replies to said connections to come back. (thus it basically does port forwarding on random port number for a while, until it times out due to inactivity)

Direct connection
You pretty much connect to person B's computer/port by adding it as 213.213.123.123: port
This would need port forwarding.
Terraria also supports this

Indirect connection.
Here you have a server online, which relays the port number you used to connect to the server, to other players.
Other players use this to connect to you and.. stuff works.
Terraria also does this for steam friends (not random people)
Also most games that have online "Lobby" to join games from, can utilize this method, you are joining said lobby after all.


There is a third way, using VPN or other tunneling application to create a tunnel through the router to the providers IP/port.
Hamachi used to be one, downside is everyone would have to use it.
VPN stuff is usually not free
 
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Tom_The_Hero1

Commendable
Mar 20, 2016
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And what if i open an FTP server using TCP on a port on my wifi adapter?
And should the extern port be 1 higher or the same than the internal one? and what is the difference between TCP and UDP?
 
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little_me

Splendid
May 9, 2015
1,672
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21,740
if router has uPnP enabled, you generally don't need to do port forwarding. If you are having problems though, it's not enabled and since you can't access it, you can't change it.

Setting up FTP server doesn't really care if it's on Wifi or Lan, connections still need to be forwarded. As for the port, you usually use same port both inside and outside of router, not that you have to but.. it's usually easier.

The tcp vs udp thing is best read yourself:
http://www.diffen.com/difference/TCP_vs_UDP

Basically TCP needs to be sent and received in order, UDP can be sent and received in any order.
so if you send packets in order 1-2-3-4-5
TCP throws a fit if they arrive in any other order
UDP doesn't care if they arrive in same order or 2-3-1-4-5
 
Upvote 0 Downvote
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