[jboss-jira] [JBoss JIRA] Commented: (JGRP-961) Tests passing under IPv4 but failing under IPv6 in JGroups 2.4.5

Fri May 1 11:49:46 EDT 2009

    [ https://jira.jboss.org/jira/browse/JGRP-961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12465370#action_12465370 ] 

Richard Achmatowicz commented on JGRP-961:
------------------------------------------

Running the sample program on Sun JDK 1.5.0 with wireshark turned on, it seems the problem is that:

- the first TCP connection from the client to server attempt succeeds (initial handshake completes OK with SYN, SYN-ACK, ACK , followed by a PSH-ACK, ACK exchange from the client to the server, then a PSH-ACK, ACK exchange from the server, followed by a FIN-ACK, ACK exchange by both ends).

- the second TCP connection attempt fails (the initial handshake to set up the connection fails with SYN, SYN-ACK, RST - for some reason, the client resets the connection upon receiving the SYN-ACK).

- same for subsequent connections.

> Tests passing under IPv4 but failing under IPv6 in JGroups 2.4.5
> ----------------------------------------------------------------
>
>                 Key: JGRP-961
>                 URL: https://jira.jboss.org/jira/browse/JGRP-961
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.4.5
>         Environment: Fedora 9, JDK 1.4.2, JDK 1.5.0 
>            Reporter: Richard Achmatowicz
>            Assignee: Richard Achmatowicz
>            Priority: Minor
>             Fix For: 2.4.6
>
>         Attachments: ServerSocketReceiver.java, ServerSocketSender.java
>
>
> When running the JGroups testsuite against IPv6 addresses (as opposed to IPv4 addresses), some tests pass on IPv4 but fail on IPv6.
> This is an issue as IPv6 compatability is quickly becoming an important issue for EAP.

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