[LAU] Even more netjack trouble (although setup seems as described)
julien at c-lab.de
Tue Sep 28 10:52:14 UTC 2010
In Sep 28 A.D. 2010 Jörn Nettingsmeier scripsit:
> On 09/28/2010 12:30 PM, Julien Claassen wrote:
>> Hello Jörn!
>> 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
> 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.
Thank you very much. We'll do that and test netjack again. I think we will
have more luck this time. :-)
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