[jboss-jira] [JBoss JIRA] Resolved: (JGRP-1152) IPv6: IPv4 addresses should be allowed as they will get converted to IPv4 mapped addresses in IPv6

[Bela Ban (JIRA)]

     [ https://jira.jboss.org/jira/browse/JGRP-1152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-1152.
----------------------------

    Resolution: Done


Fixed in 2.10

> IPv6: IPv4 addresses should be allowed as they will get converted to IPv4 mapped addresses in IPv6
> --------------------------------------------------------------------------------------------------
>
>                 Key: JGRP-1152
>                 URL: https://jira.jboss.org/jira/browse/JGRP-1152
>             Project: JGroups
>          Issue Type: Task
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 2.10
>
>
> Currently we log an exception if the stack is IPv6, but we run into IPv4 addresses, such as 192.168.1.5. However, even if the stack is IPv6, IPv4-defined addresses like 192.168.1.5 will get mapped to IPv4 mapped addresses in IPv6, so this should be allowed !
> However, class D (multicast) addresses cannot be mapped to IPv6 addresses automatically, so we should still throw an exception here.
> So 192.168.1.5 should be valid for both IPv4 and IPv6 stacks !
> Invalid combinations include:
> - IPv6 addresses (regular or multicast) with an IPv4 stack
> - IPv4 class D (*multicast*) addresses with an IPv6 stack
> Adjust the logic accordingly

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