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Old 08-30-2010, 11:50 PM   #1
ehsanen77
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TCP/IP packet classification in C

hi, i need to write a program in c that can sniff packets from Ethernet and distinguish RTP packets from Non-RTP packets, i have no idea what should i do, plz help
 
Old 08-31-2010, 12:23 AM   #2
Sergei Steshenko
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Quote:
Originally Posted by ehsanen77 View Post
hi, i need to write a program in c that can sniff packets from Ethernet and distinguish RTP packets from Non-RTP packets, i have no idea what should i do, plz help
http://www.wireshark.org/ -> pcap library: http://www.tcpdump.org/ .
 
Old 08-31-2010, 01:33 AM   #3
ehsanen77
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RE: Wireshark
These are just packet sniffing tools, i need sth that can do some action on the packets as i said i want to write a C program to do it not using these kind of softwares
 
Old 08-31-2010, 02:50 AM   #4
Sergei Steshenko
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Quote:
Originally Posted by ehsanen77 View Post
These are just packet sniffing tools, i need sth that can do some action on the packets as i said i want to write a C program to do it not using these kind of softwares
'wireshark' does distinguish the packets - as you said you wanted.
 
Old 08-31-2010, 03:39 AM   #5
ehsanen77
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RE: help
I need the answer, it's so important for me. No body knows the asnwer really? It is not normal
 
Old 08-31-2010, 04:53 AM   #6
jf.argentino
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As Sergei already said: "pcap"!

Quote:
I need the answer, it's so important for me.
it's not important for us...

Quote:
It is not normal
? it sounds rude ?

This is a help forum, if it doesn't fit your needs:
-search and do it yourself (and in your case i'm sure you can find some solution in less than a hour of google'ing).
-pay somebody to do the job for you.
 
Old 08-31-2010, 11:57 AM   #7
Sergei Steshenko
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Quote:
Originally Posted by ehsanen77 View Post
I need the answer, it's so important for me. No body knows the asnwer really? It is not normal
Start working. I gave you pointers to source code, so start studying it.
 
Old 08-31-2010, 12:29 PM   #8
theNbomr
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man pcap
--- rod.
 
Old 08-31-2010, 03:23 PM   #9
Mara
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You can use pcap to sniff Ethernet packet. Then, in the processing, you may apply a filter and get RTP packets. Or you may analyze every packet on your own.
 
Old 09-02-2010, 01:26 PM   #10
mrlinux11
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Sounds like a college student who needs help with his homework Well actually someone to do it for him
 
Old 06-29-2012, 11:37 AM   #11
tacorama
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use this tool
use netfilter tools, ie iptables or ebtables
 
  


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