28 Sep
2010
28 Sep
'10
1:15 p.m.
On Tuesday 28 September 2010 12:52:14 Julien Claassen wrote:
In Sep 28 A.D. 2010 Jörn Nettingsmeier scripsit:
To make it easier, you (or your partner) could setup a public accessible
openvpn (probably with port forwarding as jörn described on the servers
side). Then you can just use the network of this vpn tunnel to use udp.
That way you only have to set up openvpn once and not fiddle with changing
port-numbers and changing apps every time again...
Have fun,
Arnold
On 09/28/2010 12:30 PM, Julien Claassen wrote:
Thank you very much. We'll do that and test netjack again. I think we
will have more luck this time. :-) So no matter if he initiates the connection, he
will also need the
correct ports forwarded from his router?
UDP is stateless, and there is no concept
of "initiating a connection" on
the network layer. you basically send a UDP packet and hope it makes it.
the opposite end does the same.
so say we have this setup:
machine A: 192.168.0.2/24
router A: internal address 192.168.0.1/24, external address x.x.x.x
internet
router B: internal address 192.168.0.1/24, external address y.y.y.y
machine B: 192.168.0.2/24
router A must listen to the UDP port you want to use and forward each
packet to machine A.
router B must listen to the same port and forward to machine B.
say you're A. your partner host will then be y.y.y.y, i.e. the router.
since it's forwarding, you will be in effect talking to machine B.
same rules apply for the other direction.
it's advisable to run a testing tool for udp connections before you try
netjack. i recommend iperf, it's text-mode and available at sourceforge
iirc.