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Guide to configuring eduroam using a Cisco wireless controller Best ...

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The <strong>controller</strong> must have its own IP address in each VLAN which it is <strong>to</strong> serve. Strictly speaking, it<br />

does not matter which IP address this is in the subnet as long as there is no conflict with another unit,<br />

but it is a good rule <strong>to</strong> use the first available after the router’s address.<br />

The screen shot shows a typical configuration for such a virtual interface.<br />

3.2.2 Defining a RADIUS server<br />

Path: Security → RADIUS → Authentication<br />

It is advisable <strong>to</strong> ensure that the RADIUS servers are in place before beginning <strong>to</strong> define a WLAN.<br />

Several RADIUS servers may be included, which are of course the organisation’s own servers. A<br />

shared secret should be established which differs from that for <strong>eduroam</strong>’s national servers. The port<br />

number for authentication is usually UDP 1812.<br />

18

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