[jboss-jira] [JBoss JIRA] Commented: (JGRP-515) UDP.java requires the multicast address in the multicastsocket constructor to fix crosstalk on certain operating systems
[ http://jira.jboss.com/jira/browse/JGRP-515?page=comments#action_12364880 ]
Bela Ban commented on JGRP-515:
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I read up on this and Stevens [1] says for bind() that
"A process can bind a specific IP address to its socket. The IP address must belong
to an interface *on that host*" (emphasis added).
This clearly forbids binding to a class D address, as a network interface cannot have a
class D address.
I'll close this issue unless someone shows me how we can bind to a class D address on
Windows.
[1] Stevens, Richard W. UNIX Network Programming Vol I, section 4.4 (bind function)
UDP.java requires the multicast address in the multicastsocket
constructor to fix crosstalk on certain operating systems
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Key: JGRP-515
URL: http://jira.jboss.com/jira/browse/JGRP-515
Project: JGroups
Issue Type: Patch
Environment: Tested on Fedora Core 6, JDK 1.5.0_10
Reporter: ggimler
Assigned To: Bela Ban
Fix For: 2.5
Attachments: mcreceive.c, mcsend.c, UDP.java
I'm submitting a patch for a crosstalk issue described below.
I'm trying to debug a problem I'm seeing when running JGroups on the
same network/machine as another application that is sending/receiving
data via regular multicast (not through JGroups). I'm using version
2.4.1-SP3. My scenario is as follows...
JGroups send on 228.0.0.1:50000
JGroups receive on 228.0.0.1:50000
This works fine. When I start up another application that does
Sends regular multicast on 228.0.0.2:50000
Receives regular multicast on 228.0.0.2:50000
Then the JVM with the JGroups sender/receiver complains with:
May 15, 2007 4:47:59 PM org.jgroups.protocols.TP handleIncomingPacket
WARNING: packet from 192.168.101.133:36594 has different version
(26725) from ours (2.4.1). Packet is discarded
The patch is in UDP.java:
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