This article addresses the reasoning for the requirement to register devices for network connections.
UCSB Network Citizenship
Per the Network Citizenship outline specified here: http://www.oit.ucsb.edu/connect/citizenship.asp
Compliance to UCSB Network Citizenship
In order for ECI to be compliant to Campus Network Citizenship Policies, ECI needs to be able to identify the machine's location and owner to have issues reported by the Office of Information Technologies (OIT) having either vulnerabilities or being considered compromised that need to be addressed.
When OIT Security reports happen, we have found it difficult to notify or locate machines that were not registered with us to keep in compliance with the Campus Network Citizenship.
Any device that is to be connected to the network via Ethernet that is managed by ECI will need to register per the instructions listed at Requesting a Network Connection.
Devices will need to be up to date with firmware or operating system related to this.
For Network Printer devices, it is highly recommended to contact ECI before purchasing so as to get the proper printer for Network Security Compliance.
Failure to have devices registered and their consequences
While some subnets do have open pool addresses, there is only a limited pool to prevent possible abuse, and it also means there is no guarantee you will be able to have access to the network if the open pool addresses are all used up.
By having your device registered, you will be guaranteed an IP address, as well as allowing us to be able to alert you in a timely manner in case your device has been reported as compromised by OIT.