Plugging into the network

1. Direct cable connections (wired networks)

Most DEI laboratories and other rooms are provided with network outlets or cables. Personal workstations with an Ethernet interface may be plugged. These wired connections are not constrained by any access control and no user authentication is required. Users should assure they have the Ethernet interface activated and ready to receive configuration data from the network through DHCP (automatic configuration).

There are two independent wired networks available to DEI users:

• Laboratories network - encompasses all DEI physical spaces that are accessible to students.
• IPv4 - 10.8.0.0/16 private network - Automatic configuration through DHCPv4
• IPv6 - fd1e:2bae:c6fd:1008::/64 private network - Automatic configuration through SLAAC and DHCPv6


• Staff network - encompasses other rooms, including offices.
• IPv4 - 10.4.0.0/16 private network - Automatic configuration through DHCPv4
• IPv6 - fd1e:2bae:c6fd:1004::/64 private network - Automatic configuration through SLAAC and DHCPv6

Aparent public addresses when accessing the internet:

• IPv4
  • 193.136.62.5 (Laboratories network)
  • 193.136.60.24 (Staff network)
• IPv6
  • 2001:470:1f1c:6f4::2

2. Wireless connection to WiFi networks on DEI physical spaces

WiFi services aren't provided by DEI, they are ISEP/IPP services: EDUROAM and ISEPWLAN

This means, despite being physically located on DEI, when connected to WiFi, from DEI network services point of view you won't be connected to a DEI network. Thus, roughly the same access restrictions will apply as if you were somewhere on the internet.

To overcome these restrictions and achieve a scenario equivalent to be directly connected by cable, you should use in addition a DEI VPN service (see below).

3. Connecting to a DEI VPN services

These services allow users to create virtual connections with DEI networks through the internet. Although virtual, VPN connections behave as physical connections, in the case of DEI VPN services, they are equivalent to the direct cable connections discussed above.

This also implies security-related access restrictions that are enforced on traffic incoming from the internet are overcome.