What should I do to make LNS support RTP protocol?

Discussion in 'LnS English Forum' started by FWPilgrim, Sep 22, 2008.

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  1. FWPilgrim

    FWPilgrim Registered Member

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    These days, I find lots of information in the Log Page, which I have confirmed that they are packets of RTP protocol blocked by the last rule of LNS.


    In order to reduce the indications in the log list, what should I do in the "advanced options page" to make LNS support RTP protocol?
     
  2. Frederic

    Frederic LnS Developer

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    Are you sure these are RTP packets ?
    Normally, the "UDP: Block all other packet" should be triggered and not the last rule.
    Could you include a part of the log content ?

    Thanks,

    Frederic.
     
  3. FWPilgrim

    FWPilgrim Registered Member

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    Actually this is "Ethernet 0063".
    I have solved the problem by wirting a relevant raw rule. And it works.
    Thank you for your attention;)
     
  4. Frederic

    Frederic LnS Developer

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    Ok, thanks for the update.

    FYI: when the ethernet type is below 1500 (decimal), it is actually a length.
    Such packets usually don't go on Internet. Is your RTP usage only on a local network ?

    Frederic
     
  5. FWPilgrim

    FWPilgrim Registered Member

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    Re:

    Yes, they only appear in the local network
     
  6. Climenole

    Climenole Look 'n' Stop Expert

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    Hi FWPilgrim :)

    RTP (Real Time Protocol) used the UDP transport protocol on different ports:
    with VLC media player the default port is 1234 but any other may be choose.

    With VoIP applications the RTP port are (in UDP) 5004 and 5005.

    Therefore you must create a specific rule in UDP for the application using RTP. (Not a general rule for all UDP packets...)

    Check in the log for outgoing UDP packets from your local standards ports
    to these 5004/5005 ports and create a specific rule according to this...

    The local standards ports are:

    xp 1024-5000
    vista 49152-65535
    sp sp2 ICS 60000-65000

    :)
     
  7. FWPilgrim

    FWPilgrim Registered Member

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    Oh, thank you,Climenole! Thanks for detailed explanation.Now it is clear in my mind.
    I didn't see your reply until I log in today. Sorry for that:oops:
     
  8. Climenole

    Climenole Look 'n' Stop Expert

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    Hi FWPilgrim :)

    Did my suggestion solve the problem?

    I hope so. Let us know.

    :)
     
  9. FWPilgrim

    FWPilgrim Registered Member

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    Yeah, actually this is a question of my friend's. He's long since solved this problem, but maybe in a different way. I'll tell him your method to help improve his rule.
    Thanks again!:thumb:
     
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