Internet Group Management Protocol(IGMP) is used by hosts to for request multicast data for a particular multicast group. This communication takes place between the (igmp enabled)routers present in the subnet and the hosts. Hosts can subscribe to a multicast group or leave it using IGMP.
Questions tagged [igmp]
38 questions
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Windows 7 source-specific multicast (SSM)
We are planning to stream video feeds over multicast to managed Windows 7 devices.
Does Windows 7 support source-specific multicast at the OS layer (as the receiver)? It appears that Windows XP and Windows Vista both support it, but I can't find…
user184408
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How to enable multicast routing in TMG 2010?
I have a TMG 2010 firewall between some office networks, which handles routing and firewalling; I need to let some application-specific multicast traffic flow between these networks; this is UDP traffic on a custom port (10234), with destination…
Massimo
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Can l2tp carry IGMP packet?
If a client connects to one vpn server, can it join a video meeting which is based on IGMP?
larry
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Cisco 3560+ipservices -- IGMP snooping issue with TTL=1
I've got a C3560 with Enhanced (IPSERVICES) image, routing multicast between its VLANs with no external multicast router. It's serving a test environment where developers may generate multicast traffic on arbitrary addresses. Everything is working…
Jander
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I want to test IGMP capability of a OpenWRT based router. How caan i test?
This is what I want to test out,
SEE IMAGE: Router connected to users and is accessible over the internet as well
PC1 and PC2 should be able to join some group(s).
Should be able to leave group as well.
When joined they should receive the multicast…
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IGMP v3 JOIN sent but no traffic from switch
I'm trying to join an IGMP multicast stream from a Centos 8 machine but after sending a JOIN, there is no traffic coming from the switch.
Simple connection:
MUX <-----------> cisco3850 <--------> Centos8
192.168.117.13 …
Danny
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Which VLANs need IGMP snooping?
My approximate understanding is that switches and similar L2 devices employ IGMP snooping to prevent multicast "streams" from propagating out of ports that have no multicast clients downstream of them.
Questions:
It would seem that IGMP snooping is…
sxc731
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Disable all gratuitious ARP, TCP & HTML queries Windows 7
We have a machine controller running Microchip firmware worked 100% with LINUX computers for 14 years via LAN (eth0).
Now have requirement to run using Windows 7.
Unfortunately Windows sends out a whole heap of gratuitous requests on a regular…
P.Holmes
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