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Questions tagged [igmp]

Question related to IGMP(Internet Group Management Protocol), a communications protocol used by hosts and adjacent routers on IP networks to establish multicast group memberships.

Internet Group Management Protocol (IGMP) is a communications protocol used by hosts and adjacent routers on IP networks to establish multicast group memberships.

IGMP is an integral part of the IP multicast specification. It is analogous to ICMP for unicast connections. IGMP can be used for online streaming video and gaming, and allows more efficient use of resources when supporting these types of applications.

More information at http://en.wikipedia.org/wiki/Internet_Group_Management_Protocol

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SQL statement to return IP addresses that run 2 specific protocols

I have a CSV file that is a little over a half million lines long by ten columns wide. I need to take out common IP addresses that have two specific protocols (UDP and IGMP) and filter out all other IP addresses that only have one associated…
falkon114
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How the routers schedule multicast listeners?

I want to know how router schedule Multicast listeners. For example, if 2 hosts are connected to a router, and they want to listen same multicast server, which one of the 2 gets the multicast packet first?
vicky
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IGMP Request with Indy Multicast Client

I'm writing an app which uses the Indy Multicast Client from Delphi XE5. When I set Active:=true, I can see the Multicast Group Request in Wireshark and my managed switch forwards multicasts to my app. But this request is only sent on startup. After…
Bambi
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how to build igmp query generator in c/c++ under linux

I am looking for a c/c++ test that works as IGMP (raw socket) query generator, or how can I add a synthetic test that works IGMP query generator I found a perl igmp query generator…
Hatem Mashaqi
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how to join a multicast group using igmp v3 in C

In order to join a multicast group I am accustomed to having seeing code like this: struct ip_mreqn mreq; mreq.im_address.s_addr = INADDR_ANY mreq.imr_ifindex = 0; inet_aton("232.etc..", $mreq.imr_multiaddr); setsockopt(descriptor, SOL_IP,…
Palace Chan
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IGMP Join message gives wrong checksum

I'm trying to connect to a multicast group to receive some UDP packets. The code I'm using is working good, I'm receiving the packets and I haven't had a problem with this before. But just now there is a new requirement that needs the packets to…
AkselK
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Ethernet Multicast without sending member ship reports

this is a homework question. I tried almost a week for finding a solution for this problem. The problem is as follows Consider doing a multicast in an Extended Ethernet LAN (multiple Ethernet LAN segments connected via bridges). Assume that hosts do…
rozar
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How to get the size of ip_sf_socklist

In my code I'm trying to get the size of ip_sf_socklist. The only problem is, that this structure is defined (in igmp.h) after: #ifdef __KERNEL__ So in userspace, I can't see that structure. I could include the header in form…
Melon
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Stop the IPTV traffic

Is is possible to stop the IPTV traffic in a router ? I don't want to receive TV and I want that the bandwidth is only for internet and voip. Disabled the IGMP protocol is the solution ?
Bertaud
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