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Capturing ARP/UDP/TCP/ICMP packets/frames

Posted on 2004-10-14
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I need to see (bit by bit) ARP/UDP/TCP/ICMP requests and response packets to study these protocols. There is a software to do that (to capture the packets and allow see bit by bit)? And, how to make these packets flow on the network (example: I know that to see ICMP packet I need to do a ping, so I probably could see the packet, but I don´t know how to do others packets like ARP and UDP flow on network).
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Question by:alester
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by:Marakush
ID: 12309895
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by:wjc7662
ID: 12309998
Ethereal is a good netowork monitor.  If you're already running a 2000 or 2003 server Microsoft has a builtin network monitor that can be installed via the Management & Monitoring Tools subfolder of the Add Windows Componenets.
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_Jochen_ earned 375 total points
ID: 12311052
marakush is right with the tool.
if you want to capture arp pakets, just ping a host in your local Network (no router btween you and the other computer) and you´ll see the ARP Requst packets before he icmp paktes (Something like (WHO HAS ...)
For UDP Pakets you maybe can send an DNS Requst ( ping www.google.de) this should be UDP port 153.
jo
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by:Mike_Siegel
ID: 12311484
There are a number of tools for crafting specific packets, hping is one, also try PacketX for Windows http://www.softpile.com/Development/ActiveX/packetx.html

For sniffing, Ethereal as sugguested, or tcpdump
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