Birck Graduate Students: All Birck graduate student offices are changing network subnets. This means that all IP addresses, and in some cases hostnames, will need to be changed. What this means: Your computer or server, which has the IP address of either 128.46.220.* or 128.46.221.* ranges will change to something in the 128.46.222.* range. What this could possibly affect: Any remote access (Remote Desktop, file services, remote X display, etc.). Hostnames of PCs that moved from one room to another without ECN notification will probably receive a hostname change to match the room the machine is currently residing. If you have a named UNIX/Linux server (such as hinet1 or hinet2), the names will stay the same, the IP address is the only thing that will change.* Why this is being done: Currently, the two active network VLANs in Birck are the 128.46.220.* and 128.46.221.* networks. Those networks are running out of free addresses. The addition of the .222 VLAN to Birck makes available 200 network addresses, all of which will be used by Birck's graduate offices. The old network addresses in the older two VLANs will be recycled and made available to faculty, staff, printers, and labs. Will this affect any of Birck's established rules for computers and networking: No. Desktops still need to have registered IP/hostnames and be plugged into the wired network. Laptops still need to go through PAL. If you have any questions as to the established rules of bringing in computers into graduate offices, please see Mary Jo Totten. How the transition will be performed: ECN will attempt to convert four offices per day to the new subnet once the PICs for the new subnet have been activated. ECN-supported PCs will have network adjustments taken care of by ECN staff, but during this transitional period, if you are going to be away from your PC for longer than 30 minutes, please log off so that we can log in to change network settings. Self-supported machines will need to be configured by their respective owners, . Changes will be made during normal business hours. If you have a self-supported PC and you are not at your desk when we make adjustments, we will leave a note for you with your new IP address and hostname (if a new hostname is needed). Timeframe: As soon as PICs are active, we will start transitioning each room, starting with the first floor. Again, this will be done during normal business hours. If you have any other questions or concerns, please let us know via ECN Trouble Report: https://engineering.purdue.edu/ECN/TroubleReport/ *hinet users: delayed arrangements for network changes have already been agreed upon with your professor -- ++++++++++++++++++++++++++++++++++++++++++++++++++++++ Al Mondero System Engineer Engineering Computer Network, Purdue University