[LARTC] priority for voip

[LARTC] priority for voip

[ganesh kumar godavari]

hello group,
  i just want to know, if i can do some priority based routing for 
voice packets, send from my machine?

can any one tell me how can that be done?

thanks
ganesh
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Re: [LARTC] priority for voip

[Stef Coene]

On Monday 01 July 2002 09:57, ganesh kumar godavari wrote:
> hello group,
>   i just want to know, if i can do some priority based routing for
> voice packets, send from my machine?
Yes you can.

> can any one tell me how can that be done?
www.lartc.org
www.docum.org
The archive of this list.

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
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Re: [LARTC] priority for voip

[Ciprian Niculescu]

priorize udp trafic, or based on tos, if previously marked by the system

C

ganesh kumar godavari wrote:

> 
> hello stef,
>   this is the information i got from microsoft website
> (http://support.microsoft.com/default.aspx?scid=kb;EN-US;q158623)
> 
> 
> ***************************
> NetMeeting uses the following Internet Protocol (IP) ports:
>    Port      Purpose
>    -------------------------------------
>    389       Internet Locator Server [Transmission Control Protocol (TCP)]
>    522       User Location Server (TCP)
>    1503      T.120 (TCP)
>    1720      H.323 call setup (TCP)
>    1731      Audio call control (TCP)
>    Dynamic   H.323 call control (TCP)
>    Dynamic   H.323 streaming [Realtime Transport Protocol (RTP) over 
> User Datagram Protocol (UDP)]
> To establish outbound NetMeeting connections through a firewall, the 
> firewall must be configured to do the following:
> Pass through primary TCP connections on ports 522, 389, 1503, 1720 and 
> 1731.
> 
> Pass through secondary UDP connections on dynamically assigned ports 
> (1024-65535).
> *******************************
> 
> so as u can see there is no way of determining the port if it were dynamic
> 
> any pointers in this regard would be helpful
> 
> thanks
> ganesh
> 
> 
> On Tue, 02 Jul 2002 Stef Coene wrote :
> 
>> On Monday 01 July 2002 21:12, ganesh kumar godavari wrote:
>> > hai stef,
>> >   i looked into your docum.org and lartc.org. for information on
>> > giving high priority for voice packets.
>> > i did check with the netfilter group for information on
>> > identifying if a packet is a voice/data packet.
>> >
>> > i received no response from them. so can u please tell me how i
>> > can identify if a packet is a voice/data packet so that i can
>> > mangle it and send to high priority queue.
>> I have no idea how you can identify voip packets.  Is it using a fixed 
>> dst
>> port of maybe host so you can use that in the filter?
>>
>> Stef
>>
>> -- 
>>
>> stef.coene@docum.org
>>  "Using Linux as bandwidth manager"
>>      http://www.docum.org/
>>      #lartc @ irc.openprojects.net
> 
> 
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> Go now http://monsterindia.com/rediffin/
> 
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