udp

    Jakob Riis
    Feb 04 2008 | 9:30 am
    Hi - I'm using udpsend and udpreceive for a network instrument. New problem is that the other player is now on a network were he can't access the router. I guess I can check for open ports, but does any of you know a way to see from the outside which local IP a computer is at - and send to it? /J
    jr.abstractions for MaxMSP - new version (2008-01-15) http://www.sonicescape.net/maxmsp/
    • nick rothwell / cassiel
      Feb 04 2008 | 10:40 am
      On 4 Feb 2008, at 09:30, Jakob Riis wrote:
      > I guess I can check for open ports, but does any of > you know a way to see from the outside which local IP a computer is > at - > and send to it?
      Knowing the local IP of the recipient isn't much use to you - the address is, after all, local. You need to program the router so that it forwards packets coming to its external IP on a particular port to the particular local IP. (It's usually called "Reverse NAT.")
      -- N.
      Nick Rothwell / Cassiel.com Limited www.cassiel.com www.myspace.com/cassieldotcom www.last.fm/music/cassiel www.reverbnation.com/cassiel www.linkedin.com/in/cassiel www.loadbang.net
    • pdelges
      Feb 04 2008 | 10:59 am
    • Jakob Riis
      Feb 04 2008 | 11:57 am
      Yes, we use do bidirectionnal communication. But since we don't have access to the routers on one both sides, I guess its a no go! Thanks for the help anyway.
      /J