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From Aditi Sinha <>
Subject HTTP NIO connector not supporting IPv6
Date Tue, 11 Sep 2012 12:21:07 GMT

We have a web server hosted on Apache Tomcat Version 7.0.22.

Machine details: Windows 2008 server machine, 32-bit OS

Java version:  jdk1.6.0_25

Two HTTP connectors are defined in server.xml.

1.       For non-SSL requests:  Connector with  protocol="HTTP/1.1"
BIO connector)

2.       For SSL requests:  Connector with
protocol="org.apache.coyote.http11.Http11NioProtocol"       (HTTP NIO

With the above configuration server is not accessible through the IPv6
address.   The “netstat –an” command also does not list the connector
ports(defined in server.xml).

*On modifying these two connectors to use the BIO implementation,
the server supports IPv6.  *

Any idea why HTTP NIO connector would not support IPv6?

Thanks & Regards,


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