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  1. #1
    Junior Member
    Join Date
    Jun 2005
    Posts
    13

    How to enable Iptables with Netmeeting

    Hi all,

    I''m using Fedora Core 3 firewall ( NAT ).I have faced netmeeting probelm .. External to Internal. I can call Internal MS XP to External MS XP. ... How to configure .. external to local xp.
    OUTSIDE IP: 10.242.194.20 xp PC

    FC 3 NAT = ext ip 10.242.194.19
    NAT = int ip 10.10.10.10

    inter network ip 10.10.10.9

    I want to get netmeeting with 10.242.194.20 to 10.10.10.9

    I've got below info .. but this error
    http://www.cryogenic.net/nmproxy.html
    mproxy#./nmproxy_install
    This software may only be used by a non-profit entiity.
    Will this software only be used by a non-profit entiry? ( Y or N ) [N] y
    cp: cannot stat 'nmproxy.Linux' : No such file or directory
    anyone can help ?

    Thanks in advance

  2. #2
    T3h Ch3F
    Join Date
    Sep 2001
    Posts
    718
    Greets Berkely,


    Can you explain more specifically what you are trying to do? (the reason for the meeting and the IP's) The "Non-profit" message may be serial key issue.

    Did you purchase the program? Or is it cracked?



    Get some good religion from Bad Religion.

  3. #3
    Junior Member
    Join Date
    Jun 2005
    Posts
    13
    Just i want to get netmeeting external PC to NAT firewall internal PC.
    it is completely free not for commercial use .

  4. #4
    Senior Member IKnowNot's Avatar
    Join Date
    Jan 2003
    Posts
    792
    Did you build it from the source you downloaded before trying to install it?


    make -f Makefile.Linux
    " And maddest of all, to see life as it is and not as it should be" --Miguel Cervantes

  5. #5
    Junior Member
    Join Date
    Jun 2005
    Posts
    13
    yap,

    I tried that ,

    make -f Makefile.Linux
    cc -g -DDEBUG -wall -c h225.c
    make: *** [h225.0] Error 127

    .. got this error.
    any idea ?

  6. #6
    Senior Member IKnowNot's Avatar
    Join Date
    Jan 2003
    Posts
    792
    make -f Makefile.Linux
    cc -g -DDEBUG -wall -c h225.c
    make: *** [h225.0] Error 127
    AFAIK, it could be a path problem, lib problem, etc.

    Make sure your system is up-to date and you have all the necessary gcc files loaded
    For this box ( FedoraCore 3 ),
    $ rpm -qa |grep gcc
    gcc-objc-3.4.4-2.fc3
    gcc-3.4.4-2.fc3
    gcc-c++-3.4.4-2.fc3
    gcc-java-3.4.4-2.fc3
    libgcc-3.4.4-2.fc3
    gcc-g77-3.4.4-2.fc3

    Then delete the directory and rebuild it with
    tar -xzvf nmproxy_src.tar.gz

    change to that directory and try again.

    make -f Makefile.Linux

    If that doesn't work, ( I don't know what permissions or path you gave the user you are utilizing ) try
    su -
    that will give you root privileges and include root's path. Now change back to the nmproxy directory and try again.

    If you still get the same problem, try

    make -d -f Makefile.Linux > problem.txt

    review the file problem.txt to see if you can find where it is failing, if not, attach it here, maybe someone can help further.
    " And maddest of all, to see life as it is and not as it should be" --Miguel Cervantes

  7. #7
    Senior Member
    Join Date
    Apr 2004
    Posts
    1,130
    you dont need a proxy to run netmeeting thru a linux box.
    You just need a good iptables config.
    You need to add nat rules to config, such as this:
    Code:
    iptables -A PREROUTING -t nat -p tcp -d your.public.ip --dport 1720 -j DNAT --to your.internal.ip:1720
    iptables -A FORWARD -p tcp -d your.internal.ip --dport 1720 -o your.internal.adapter -j ACCEPT
    Another way is install conntracks for h.323. I think they are ip_conntrack_h323 and ip_nat_h323, but i've never used those.
    There is some documentation on www.netfilter.org about them.
    Meu sítio

    FORMAT C: Yes ...Yes??? ...Nooooo!!! ^C ^C ^C ^C ^C
    If I die before I sleep, I pray the Lord my soul to encrypt.
    If I die before I wake, I pray the Lord my soul to brake.

  8. #8
    Junior Member
    Join Date
    Jun 2005
    Posts
    13
    Thanks
    IKnowNot and cacosapo,

    When i type this line,
    iptables -A FORWARD -p tcp -d your.internal.ip --dport 1720 -o your.internal.adapter -j ACCEPT
    error:=>> #iptables: no chain/target/match by this name
    How sould i do next step ?

  9. #9
    Junior Member
    Join Date
    Jun 2005
    Posts
    13
    Thanks
    IKnowNot and cacosapo,

    When i type this line,
    iptables -A FORWARD -p tcp -d your.internal.ip --dport 1720 -o your.internal.adapter -j ACCEPT
    error:=>> #iptables: no chain/target/match by this name
    How sould i do next step ?

  10. #10
    Senior Member
    Join Date
    Apr 2004
    Posts
    1,130
    err...
    i hope that i you had replaced "your.internal.ip" and "your.internal.adapter" by your ip address and your linux ethernet adapter name
    Otherwise i dont think you have enough basic knowledge to deal with linux. Perhaps a friend of your can help you on this matter?
    Meu sítio

    FORMAT C: Yes ...Yes??? ...Nooooo!!! ^C ^C ^C ^C ^C
    If I die before I sleep, I pray the Lord my soul to encrypt.
    If I die before I wake, I pray the Lord my soul to brake.

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