Important changes to the wireless network of TU Dortmund

On 01.10.2018 there will be big changes to the wireless network of TU Dortmund.

1. The parallel operation of eduroam and ITMC-WPA2 will be stopped. From 1.10.2018 onwards the only broadcast network will be eduroam .

2. As the certificate Deutsche Telekom Root CA2 expires mid-2019, we will switch to T-Telesec GlobalRoot CA2 on 1.10.2018.

What does that mean for users of the network?

a) If you used ITMC-WPA2 so far, you should set up a connection to eduroam instead. Doing this you can also connect to the internet in a multitude of scientific and research institutions worldwide.

b) If you already use eduroam, you have to configure your connection to use the new certificate.

We already offer profiles and configuration manuals for eduroam on our website. We recommend updating your wifi configuration early and only using eduroam. The new profiles already work and are found here.

 

What are the advantages?

The performance of the wireless network will improve, because the access points will broadcast one less wireless network.

The users of the wireless network only need one configuration on their device which works everywhere the wireless network eduroam is available.

When is it possible to switch?

The switch to eduroam or updating the eduroam configuration is already possible.

Why were there two wireless networks??

This has historical reasons (ITMC-WPA2 is older, eduroam as an overarching structure came later). There is no technical difference between these two. The basic difference between ITMC-WPA2 and eduroam, apart from (device-dependant) additional settings, is that you have to add the REALM "@tu-dortmund.de" when using eduroam.

Does eduroam distribute other ip addresses than ITMC-WPA2?

No, the address range is the same.

Why replace the old certificate?

The current certificate Deutsche Telekom Root CA2 expires mid-2019. Replacing it with T-Telesec GlobalRoot Class 2 is inevitable. As users have to update their configuration anyhow, we take the opportunity to remove ITMC-WPA2.

Why do we need a certificate?

A network verifies username and password of a user through a radius-server.

To prevent sending this data to untrustworthy authentification servers, the client verifies the trustworthiness of the radius-server by means of the certificate.

 

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