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https://issues.apache.org/jira/browse/HADOOP-19962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18126186#comment-18126186
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ASF GitHub Bot commented on HADOOP-19962:
-----------------------------------------

smengcl commented on code in PR #8812:
URL: https://github.com/apache/hadoop/pull/8812#discussion_r4244894737


##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/MachineList.java:
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Review Comment:
   Thanks @joseluisll . Done in 7219b8612e64c8dbf4a56654154728a6c4963d35





> Support IPv6 CIDR rules in MachineList
> --------------------------------------
>
>                 Key: HADOOP-19962
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19962
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Siyao Meng
>            Assignee: Siyao Meng
>            Priority: Major
>              Labels: pull-request-available
>
> MachineList uses the IPv4-only SubnetUtils class. IPv6 CIDR rules therefore 
> fail in address-based security policies. Add family-aware prefix matching for 
> IPv4 and IPv6. Preserve existing IPv4 behavior. Reject invalid prefixes and 
> addresses from the wrong family.



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