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4
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3answers
366 views

Multicasting in Linux

I want to do multicasting in linux for the video/audio/data file transmission. Is there any utility/tool to do so ?
3
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3answers
21k views

How can I know if IP Multicast is enabled

I have scripts that run IP multicast tests; however, my scripts are failing on a particular linux machine. I know that I can look at CONFIG_IP_MULTICAST in the kernel configuration file to determine ...
3
votes
1answer
2k views

Why would my Linux host suddently stop receiving multicast? All other nics on private network are receiving

Here is my dilemma. Suddenly, as of yesterday, multicast packets are no longer being received from eth1 (private gigabit network) from one node. Routing between all the nodes is fine, no collisions, ...
3
votes
2answers
311 views

Network issue in vsat

In my server-client architecture, I multicast 100 MB files to many clients from server via satellite link. Network traversal is through 5 hops. I have the 10Mbps ( i.e. 1250 Kilo Byte per second ) ...
3
votes
1answer
226 views

Alternative to mrouted for DVMRP on Debian Squeeze

I need to implement DVMRP protocol to route multicast over Openvpn (tun) connection for some old 3Com NBX phones. I use Debian squeeze so mrouted is not available (obsolete). What can I use ...
2
votes
1answer
131 views

cat file to udp, pt 2: send 1 udp packet per ^C-delimited line

Yesterday I asked a question about catting a file over a UDP socket in bash. The solution we came up was netcat -c -w 1 -v -u -s 127.0.0.1 239.255.0.1 30001 < test.txt. This worked in the sense ...
2
votes
1answer
68 views

cat file to multicast

I have a text file (test.txt) which represents captured network data. The actual protocol is text-based, with NULL line endings, so this isn't a problem. I need to run this test captured data ...
2
votes
0answers
172 views

Dumping multicast UDP stream with socat

I am setting up video streaming. In local network, there are two devices streaming video over UDP multicast. One is regular computer with Linux (streaming to 239.220.221.10, port 9200), second one is ...
2
votes
0answers
318 views

Centos 6.3 Server ignoring IGMP Queries

I am using a centos 6.3 server to subscribe to UDP multicast data and I noticed that my server doesn't answer to the IGMP queries sent by the switch it is connected to. As a result, when I open my ...
2
votes
0answers
408 views

Enabling multicast communication between 2 AIX JVM processes

I'm having trouble with multicast distribution on a single AIX machine between two JVM processes. Think ehcache or jgroups. In order to enable on Mac OS X: route add -net 224.0.0.0 -interface lo0 ...
1
vote
1answer
2k views

net.ipv4.conf.all.mc_forwarding: why is my access denied?

On Debian 12.04 LTS I am trying to access the key net.ipv4.conf.all.mc_forwarding by doing : sudo sysctl -w net.ipv4.conf.all.mc_forwarding=1 But every time I am doing this, I get the message ...
1
vote
1answer
96 views

Multicast UDP not working

Multicast UDP on raspberry pi I haven't narrowed things down enough to know if my issue is because of debian, raspbian specifically, or if I am just missing a something completely. I have a python ...
1
vote
2answers
1k views

multicast is enabled on ubuntu?

I have one of my Ubuntu machine- rkost@rj-vm9-14105:~/infinispan/infinispan-server-6.0.0.Alpha1/bin$ uname -a Linux rj-vm9-14105 2.6.35-22-server #33-Ubuntu SMP Sun Sep 19 20:48:58 UTC 2010 x86_64 ...
1
vote
1answer
473 views

Is there a way to increase the 20 multicast group limit per socket?

As the title says, is there a way to increase the limit of 20 multicast groups that you can join on a given socket? Is there some system setting that I am missing or is there some hard limit which ...
1
vote
1answer
250 views

Multicast on local box

I have an application I need to interface with that listens to a multicast address. I'd like to be able to run a program I've written and have it interface with the other application by multicast ...
1
vote
1answer
96 views

How to relay packet in a wireless ad hoc network?

I am trying to connect several Linux computers in wireless ad-hoc multicast : -computer C1 (192.168.1.3) -computer C2 (192.168.1.5) -computer C3 (192.168.1.6) C1 can not reach C3 On computer C1, ...
1
vote
0answers
448 views

AIX multihomed multicast

On my AIX machine if I run netstat -ia I get: Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll en0 1500 link#2 1e.18.1.1e.78.2 385229 0 1091655 0 0 ...
0
votes
0answers
123 views

Duplicate udp packets received by user space process

I have 2 processes on the same Linux box connecting with the same UDP multicast channel and port combination. The 2 processes use the same network card as the interface for send and receive. Each ...