WinPcap-igmp-join

Example of how to join a IGMPv2 multicast group when using WinPcap.

Usage example : sendigmp.exe "rpcap://\Device\NPF_{F7AE2C5A-3C42-4CCA-B034-BD4B3CE9D578}"

Requires WinPCAP develooper resources. Tested against version 4.1.3 (https://www.winpcap.org/devel.htm).

Example Usage : Join a multicast group:

	    D:\WpdPack\Examples-pcap\sendpack\Debug>sendigmp.exe rpcap://\Device\NPF_{F7AE2C5A-3C42-4CCA-B034-BD4B3CE9D578} 1 239 255 255 250
	    1. rpcap://\Device\NPF_{4F2C580A-26CC-40A1-A339-578B4B473B85} (Network adapter 'Microsoft' on local host)
	    2. rpcap://\Device\NPF_{6FDD06EA-8BFD-460B-A3AC-9789FE3E1600} (Network adapter 'Microsoft' on local host)
	    3. rpcap://\Device\NPF_{F7AE2C5A-3C42-4CCA-B034-BD4B3CE9D578} (Network adapter 'Intel(R) 82579LM Gigabit Network Connection' on local host)
	    4. rpcap://\Device\NPF_{6793231A-CC1D-4CCB-88F1-C57C4BEA9E44} (Network adapter 'Microsoft' on local host)
	    
	    IGMP Joining 239.255.255.250...

Leave a multicast group:

	    D:\WpdPack\Examples-pcap\sendpack\Debug>sendigmp.exe rpcap://\Device\NPF_{F7AE2C5A-3C42-4CCA-B034-BD4B3CE9D578} 0 239 255 255 250
	    1. rpcap://\Device\NPF_{4F2C580A-26CC-40A1-A339-578B4B473B85} (Network adapter 'Microsoft' on local host)
	    2. rpcap://\Device\NPF_{6FDD06EA-8BFD-460B-A3AC-9789FE3E1600} (Network adapter 'Microsoft' on local host)
	    3. rpcap://\Device\NPF_{F7AE2C5A-3C42-4CCA-B034-BD4B3CE9D578} (Network adapter 'Intel(R) 82579LM Gigabit Network Connection' on local host)
	    4. rpcap://\Device\NPF_{6793231A-CC1D-4CCB-88F1-C57C4BEA9E44} (Network adapter 'Microsoft' on local host)
	    
	    IGMP Leave 239.255.255.250...

Example of how to check the GS12 memberships:

	    (Abaco Systems GBX410 Routing) #show mac-address-table igmpsnooping
	    
	          MAC Address         Type      Description             Interfaces
	    -----------------------  -------  ----------------  -------------------------
	    00:02:01:00:5E:7F:FF:19  Dynamic  Network Assist    Fwd: 0/2
	    00:02:01:00:5E:7F:FF:FA  Dynamic  Network Assist    Fwd: 0/2
	    00:02:01:00:5E:7F:FF:FF  Dynamic  Network Assist    Fwd: 0/2

After issuing a Leave command i.e. sendigmp.exe rpcap://\Device\NPF_{39EFC0AD-AE9B-40EC-82CF-9306C91F4013} 0 239 255 255 255

      (Abaco Systems GBX410 Routing) #show mac-address-table igmpsnooping
	    
	          MAC Address         Type      Description             Interfaces
	    -----------------------  -------  ----------------  -------------------------
	    00:02:01:00:5E:7F:FF:19  Dynamic  Network Assist    Fwd: 0/2
	    00:02:01:00:5E:7F:FF:FA  Dynamic  Network Assist    Fwd: 0/2

Links

• Code conforms to https://www.ietf.org/rfc/rfc2236.txt
• Wireshark example can be found at https://wiki.wireshark.org/IGMP
• Abaco Systems rugged GS12 Switch
• Abaco Systems rugged GBX410 Switch