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Question
Tuesday, March 3, 2020 10:06 AM
Greetings everyone
We are doing some tests where one of sales project seems to show a demo for multicast
Network team has take care of multicast requirements at switch level
and provided us with Centos and windows vms. all vms are on same esxi node
centos vms ( 3 vms) once w e follow steps and assign multicast ips responds to multicast group ( for testing 224.0.0.1)
however, when we now assign multicast IP to windows Vm
and perform ping test on multicast 224.0.0.1
the linux vms are responding in PING results , but w ecan see Windows Server IP
also from linux vms when testing via PINg windows server IP is not responding in multicast test.
some of changes I tried at windows 2016 vm we followed followinglink
1.type “regedit” , then navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\
1.In the right pane, right-click and select New – DWORD (32-bit value) and set its name as “IGMPVersion” , set it with the value 4
1.Version values:
2 – Support IGMP version 1
3 – Support IGMP version 2
4 – Support IGMP version 3 (default)
1.In the right pane, right-click and select New – DWORD (32-bit value) and set its name as “IGMPLevel” and set it to 2
2.Level values:
0 – Disable Multicast support
1 – Support only sending IPv4 Multicast packets (do not receive)
2 – Fully participate in IGMP. Support sending and receiving Multicast packets (default)
Here is the reference download link for the IGMP values:
changes to TCP/IP registry values
http://www.microsoft.com/en-us/download/details.aspx?id=9152
netsh interface ipv4 set interface Ethernet2 weakhostsend=enabled
netsh interface ipv4 set interface Ethernet2 weakhostsend=enabled
netsh interface ipv4 set interface Ethernet2 weakhostreceive=enabled
netsh interface ipv4 set interface Ethernet2 weakhostreceive=enabled
• C:\Users\Administrator>netsh interface ip show joins
Interface 6: Ethernet0
Scope References Last Address
0 0 Yes 224.0.0.1
0 1 Yes 224.0.0.251
0 1 Yes 224.0.0.252
0 1 Yes 224.0.0.253
0 1 Yes 239.255.255.250
• this shows that it is joining?
• i have chnaged wekhost send values
• also
All replies (1)
Wednesday, March 4, 2020 7:01 AM
Hi,
Yes, the results show that the 224.0.0.1 has been added to the multicast group.
If the windows server IP still not respond in multicast test, we recommend that you use the Network Monitor tool for further analysis.
However, from forum support level, analysis of packet capture is beyond our scope.
So if the issue is urgent, I suggest you open a case with Microsoft, more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue.
Here is the link:https://support.microsoft.com/en-us/help/4051701/global-customer-service-phone-numbers
Please let us know if you would like further assistance.
Have a nice day!
Allan
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