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Date: Fri, 4 Aug 2017 13:56:02 +0000 (UTC)
From: "Sebb (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (NET-641)
 SubnetUtils.SubnetInfo.isInRange("0.0.0.0") returns true for CIDR/31, 32
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archived-at: Fri, 04 Aug 2017 13:56:10 -0000


    [ https://issues.apache.org/jira/browse/NET-641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16114393#comment-16114393 ] 

Sebb commented on NET-641:
--------------------------

isInRange ignores isInclusiveHostCount in order to do what the Javadoc says it will do.

If there is a use-case for a new method that takes this into account then please raise an enhancement request.
Ideally with test cases.

> SubnetUtils.SubnetInfo.isInRange("0.0.0.0") returns true for CIDR/31, 32
> ------------------------------------------------------------------------
>
>                 Key: NET-641
>                 URL: https://issues.apache.org/jira/browse/NET-641
>             Project: Commons Net
>          Issue Type: Bug
>    Affects Versions: 3.6
>         Environment: Windows; JDK8; common-net 3.6
>            Reporter: pin_ptr
>            Priority: Minor
>             Fix For: 3.7
>
>
> Code:
> import org.apache.commons.net.util.SubnetUtils;
> public class A {
>   public static void main(String[] args) {
>     System.out.println(new SubnetUtils("192.168.1.0/30").getInfo().isInRange("0.0.0.0"));
>     System.out.println(new SubnetUtils("192.168.1.0/31").getInfo().isInRange("0.0.0.0"));
>     System.out.println(new SubnetUtils("192.168.1.0/32").getInfo().isInRange("0.0.0.0"));
>   }
> }
> Result:
> false
> true
> true
> Expected:
> false
> false
> false


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