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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
    </build-info>


<item>
            <title>[MC-2507] Entering IPv6 servers crashes the client</title>
                <link>https://bugs.mojang.com/browse/MC-2507</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;When i&apos;m trying to add a IPv6 Server, i cant click on &quot;save&quot;.&lt;br/&gt;
(Screenshot 1, mc1.png)&lt;/p&gt;

&lt;p&gt;When i&apos;m trying to connect directly to the IPv6, i get as response:&lt;br/&gt;
&quot;java.net.SocketException: Protocol family unvailable&quot;&lt;br/&gt;
(Screenshot 2, mc2.png)&lt;/p&gt;

&lt;p&gt;Sometimes it crashes while trying to use IPv6:&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;---- Minecraft Crash Report ----
&lt;span class=&quot;code-comment&quot;&gt;// Ooh. Shiny.
&lt;/span&gt;
Time: 08.11.12 17:34
Description: Unexpected error

java.lang.NullPointerException
	at aww.a(SourceFile:57)
	at ayt.b(SourceFile:755)
	at net.minecraft.client.Minecraft.J(SourceFile:604)
	at net.minecraft.client.Minecraft.run(SourceFile:534)
	at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)

Relevant Details:
- Minecraft Version: 1.4.2
- Operating &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt;: Windows 8 (amd64) version 6.2
- Java Version: 1.7.0_09, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 489391232 bytes (466 MB) / 524550144 bytes (500 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 2 total; -Xms512m -Xmx1024m
- AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
- LWJGL: 2.4.2
- OpenGL: ATI Radeon HD 3870 X2 GL version 3.3.11653 Compatibility Profile Context, ATI Technologies Inc.
- Is Modded: Probably not
- Type: Client
- Texture Pack: Default
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: ~ERROR~ NullPointerException: &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment></environment>
        <key id="14188">MC-2507</key>
            <summary>Entering IPv6 servers crashes the client</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="1">Fixed</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="ven000m">ven000m</reporter>
                        <labels>
                            <label>ipv6</label>
                    </labels>
                <created>Thu, 8 Nov 2012 17:07:53 +0100</created>
                <updated>Wed, 24 Dec 2014 16:19:07 +0100</updated>
                            <resolved>Thu, 8 Nov 2012 22:33:06 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                                    <fixVersion>Minecraft 1.4.5</fixVersion>
                                                        <votes>1</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="213558" author="ven000m" created="Wed, 24 Dec 2014 16:19:07 +0100"  >&lt;p&gt;Is this fixed yet?&lt;/p&gt;</comment>
                            <comment id="163474" author="hobarrera" created="Mon, 16 Jun 2014 11:44:52 +0200"  >&lt;p&gt;IPv6 addresses usually jus take the format of 2001:41d0:4f96::1. The brackets generally only are used when specifying a port, ej: [2001:41d0:4f96::1]:59382&lt;/p&gt;</comment>
                            <comment id="22662" author="ferdi265" created="Sat, 17 Nov 2012 21:24:12 +0100"  >&lt;p&gt;okay, I don&apos;t know the exact syntax. I just thought it might have been like that.&lt;br/&gt;
Learning by doing. Know we know that it doesn&apos;t work like that&lt;/p&gt;</comment>
                            <comment id="22528" author="ven000m" created="Sat, 17 Nov 2012 14:21:57 +0100"  >&lt;p&gt;Well, i tried it! Not working &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/sad.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="22526" author="ferdi265" created="Sat, 17 Nov 2012 13:59:22 +0100"  >&lt;p&gt;add, [-brackets around it. Mojira made a link out of my brackets&lt;/p&gt;</comment>
                            <comment id="22525" author="ferdi265" created="Sat, 17 Nov 2012 13:58:45 +0100"  >&lt;p&gt;I think it&apos;s &lt;span class=&quot;error&quot;&gt;&amp;#91;2001:41d0:4f96::1&amp;#93;&lt;/span&gt;&lt;/p&gt;</comment>
                            <comment id="22509" author="ven000m" created="Sat, 17 Nov 2012 12:35:05 +0100"  >&lt;p&gt;So whats the correct format for this?&lt;/p&gt;

&lt;p&gt;2001:41d0:8:4f96::1&lt;/p&gt;

&lt;p&gt;default port&lt;/p&gt;</comment>
                            <comment id="22508" author="ferdi265" created="Sat, 17 Nov 2012 12:31:24 +0100"  >&lt;p&gt;IPv6 Ips contain brackets to distinguish between the :s from the Ip adress (e.g.: 1337:21db:6:9000::e) and the Port identifier (:&amp;lt;enter-port-here&amp;gt;)&lt;/p&gt;</comment>
                            <comment id="22495" author="ven000m" created="Sat, 17 Nov 2012 11:27:22 +0100"  >&lt;p&gt;Hello.&lt;/p&gt;

&lt;p&gt;Downloaded the 1.4.5 Client.&lt;br/&gt;
Still unable to connect to Minecraft Server over IPv6, but all other IPv6 Services (IRC, HTTP) working well.&lt;/p&gt;</comment>
                            <comment id="20195" author="alphablend" created="Sat, 10 Nov 2012 05:44:49 +0100"  >&lt;p&gt;If your network interface supports it, yes.&lt;/p&gt;</comment>
                            <comment id="19720" author="ven000m" created="Thu, 8 Nov 2012 22:53:34 +0100"  >&lt;p&gt;Thank you.&lt;/p&gt;

&lt;p&gt;So in the newer version (1.5+), i can use IPv6 to connect to minecraft Servers right?&lt;/p&gt;
</comment>
                            <comment id="19715" author="grum" created="Thu, 8 Nov 2012 22:33:06 +0100"  >&lt;p&gt;Fixed.&lt;/p&gt;

&lt;p&gt;The &apos;protocol family unavailable&apos; is just what it says; you cannot make outgoing ipv6 connection without having an interface support it.&lt;/p&gt;</comment>
                            <comment id="19567" author="ven000m" created="Thu, 8 Nov 2012 20:23:03 +0100"  >&lt;p&gt;Oh, k.&lt;/p&gt;

&lt;p&gt;Im under Windows 8, 64bit.&lt;/p&gt;</comment>
                            <comment id="19557" author="aragon" created="Thu, 8 Nov 2012 19:57:25 +0100"  >&lt;p&gt;On Linux (Ubuntu 12.10 64bit) with IcedTea (OpenJDK) &quot;Direct Connect&quot; works, but &quot;Add Server&quot; doesn&apos;t.&lt;/p&gt;

&lt;p&gt;The direct connect issue seems to be in Sun Java, the add server one in the Minecraft code.&lt;/p&gt;</comment>
                            <comment id="19546" author="ven000m" created="Thu, 8 Nov 2012 19:37:42 +0100"  >&lt;p&gt;So, i was trying to connect over a IPv6 AAAA Record Domain:&lt;/p&gt;

&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;minecraft.pauschi.de [2001:41d0:8:4f96::1]&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;Getting a &quot;Can&apos;t resolve hostname&quot; response.&lt;/p&gt;

&lt;p&gt;When im using chrome, the website works.&lt;/p&gt;</comment>
                            <comment id="19540" author="talven81" created="Thu, 8 Nov 2012 19:25:26 +0100"  >&lt;p&gt;&lt;a href=&quot;http://www.minecraftforum.net/topic/1226074-cant-add-server-using-ipv6-address/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Similar related issue found on MCForums&lt;/a&gt;&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Basically, if you add a server using a hostname (minecraft.example.org) that has an AAAA record, it will add it successfully.  If you try adding it using the IP it doesn&apos;t work.  When you type in the IP, the &apos;Add&apos; button is greyed out.&lt;/p&gt;

&lt;p&gt;Using the &apos;Direct Connect&apos; button works fine with an IPv6 formatted address.&lt;/p&gt;&lt;/blockquote&gt;</comment>
                            <comment id="19510" author="ven000m" created="Thu, 8 Nov 2012 18:31:55 +0100"  >&lt;p&gt;Yep, as for example to a IPv6 Webside, you have to enter&lt;/p&gt;


&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-xml&quot;&gt; 
http://[2001:41d0:8:4f96::1]/
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt; 

&lt;p&gt;instead of&lt;/p&gt;

&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-xml&quot;&gt;&#160;
http://2001:41d0:8:4f96::1/
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt; </comment>
                            <comment id="19509" author="smanly" created="Thu, 8 Nov 2012 18:28:17 +0100"  >&lt;p&gt;IPv6 addresses contain brackets?&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="12947">MC-1603</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="13525">MC-2130</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="13549">MC-2149</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10103">
                    <name>Relates</name>
                                                                <inwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="15933">MC-3776</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="12578" name="mc1.png" size="62519" author="ven000m" created="Thu, 8 Nov 2012 17:07:53 +0100"/>
                            <attachment id="12579" name="mc2.png" size="18485" author="ven000m" created="Thu, 8 Nov 2012 17:07:54 +0100"/>
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