Hi folks,

just wasted half a day on an IPv6 related problem. I ran an instance of JBoss on 2 nodes (A and B), config as follows:

A: Suse 8 Linux 2.4, JDK 1.4.1_02, JBoss head, IPv4/IPv6
B: Windows XP, JDK 1.4.1_02, JBoss head, IPv4

The bind_addr property in UDP was set correctly, but A and B could not find each other.

After a long time I found out that for some reason, the IPv4/6 (dual) stack on A didn't communicate with te IPv4 stack on te Windows box. I don't know why because dual stacks are supposed to be able to talk to IPv4 and IPv6 stacks.

Anyway, as a workaround, you can always use the property java.net.preferIPv4Stack=true, e.g.

java -Djava.net.preferIPv4Stack=true org.javagroups.demos.Draw -props file:/home/bela/default.xml


This works, but can anyone shed light on the problem ? Has anyone experienced this one before ?


Sacha: I suggest to add this to the documentation. You can copy the section I added to the INSTALL.html file in JavaGroups CVS head.

--
Bela Ban
www.javagroups.com
(408) 316-4459





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