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When using redirector links, you can optionally add redirector IP bypass zones which will allow you to bypass OpenAthens authentication at locations where the resources will allow access via IP authentication. This is very useful if you have to maintain separate links to resources in your library catalogue, portal or link resolver tool depending on when account holders are inside or outside of your network. Redirector bypass zones will work with any resource that has either an access URL (bypassable) or a redirector configuration (redirectable).

When a user follows a redirector link, the redirector will decide whether to pass the user straight to the service provider, or pass the user to the OpenAthens authentication point where the user would be challenged for username and password if they were not already signed in.


Ranges may only be specified within an octet and the first last two octets cannot be wildcard characters. CIDR notation is not supported. If you have a range expressed with a slash it will need to be translated into an accepted format.

In most cases it will be sufficient to specify these ranges at the domain level, but additional ranges can be added per organisation to cater for local circumstances - for example where a local organisation has additional IP ranges, especially if they are connected with local resource subscriptions.  You should ensure that local administrators are aware of the impact of mistakes though; see below.