Adding IPV6 address to local.cfg

[George Kozak]

Hello,

Using DSpace 6.3 (XMLUI).  I need to add an IPV6 address to the local.cfg file in the IP-ADDRESS AUTHENTICATION CONFIGURATIONS section.  I want to add it to allow for a range instead of a specific IP address.

Can I do that?  I have other IPs in the table that are working fine, but never added an IPV6 before.

--

***************************
George Kozak
Digital Library Specialist
Cornell University Library - IT
218 Olin Library
Cornell University
Ithaca, NY 14853
607-255-8924

gs...@cornell.edu

Due to staffing changes necessitated by the current public health concerns my response might be slower than usual. If your message is urgent, please send it with the Subject header “URGENT”. Thank you!

[Mark H. Wood]

On Mon, Apr 13, 2020 at 05:11:02PM -0400, George Kozak wrote:
> Hello,
> Using DSpace 6.3 (XMLUI). I need to add an IPV6 address to the local.cfg
> file in the IP-ADDRESS AUTHENTICATION CONFIGURATIONS section. I want to
> add it to allow for a range instead of a specific IP address.
> Can I do that? I have other IPs in the table that are working fine, but
> never added an IPV6 before.

From org.dspace.authenticate.IPMatcher.java:

/**
* Quickly tests whether a given IP address matches an IP range. An
* {@code IPMatcher} is initialized with a particular IP range specification.
* Calls to {@link IPMatcher#match(String) match} method will then quickly
* determine whether a given IP falls within that range.
* <p>
* Supported range specifications are:
* <p>
* <ul>
* <li>Full IPv4 address, e.g. {@code 12.34.56.78}</li>
* <li>Full IPv6 address, e.g. {@code 2001:18e8:3:171:218:8bff:fe2a:56a4}</li>
* <li>Partial IPv4 address, e.g. {@code 12.34} (which matches any IP starting
* {@code 12.34})</li>
* <li>IPv4 network/netmask, e.g. {@code 18.25.0.0/255.255.0.0}</li>
* <li>IPv4 or IPv6 CIDR slash notation, e.g. {@code 18.25.0.0/16},
* {@code 2001:18e8:3:171::/64}</li>
* </ul>
*

So, you'll need to express that address range as one or more CIDR
address/length expressions.

The matcher recognizes IPv6 addresses when they contain ":". No
square brackets are needed as with some other IP address parsers.

--
Mark H. Wood
Lead Technology Analyst

University Library
Indiana University - Purdue University Indianapolis
755 W. Michigan Street
Indianapolis, IN 46202
317-274-0749
www.ulib.iupui.edu

[George Kozak]

Thank you, Mark!

George Kozak

Cornell University

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