The 188.8.131.52/24 wired network on the second floor of Cory Hall is being replaced by the 184.108.40.206/24 network.
This change of network has begun and will be completed by Wednesday December 26, 2012.
We encourage folks to have their activated port cables ids and devices connected to the network on the second floor of Cory Hall migrated to the new network now.
Any activated port cables id that have not migrated to the new network by Wednesday December 26, 2012 will be migrated then.
You can check via the “Port Search” and “Advanced Port Search” IRIS Network Management forms at
If you are ready to have your port cable id and device(s) migrated now or anytime before Wednesday December 26, 2012 please follow the procedure described below.
The network migration will be rather easy for most devices. For devices that lease a non-fixed IP address from the IRIS dhcp server (and get all network related information from the dhcp server), these devices might only require releasing and then renewing their dhcp lease or at most might require a reboot. If these devices have any special host based firewall rules that refer to the 220.127.116.11/24 network, an update of those firewall rules may be appropriate.
For devices with a fixed IP address (/ fixed DNS name), that get all their network information from the IRIS dhcp server, the migration to the new network will be similar to the migration for devices that lease a non-fixed IP address (as mentioned above) after the submitted “Update a Device” form is processed.
For devices with a fixed IP address that have their network information statically configured instead of assigned via the IRIS dhcp server, the static information will need to be updated after the submitted “Update a Device” form is processed.
Please submit an “Update a Device” form for your non-mobile device(s) and note in the “Comments on this request:” area of the second page of the form that they you are “ready to migrate to the new network” and to please also specify if you do not want this migration to happen by the next working day.
Usage of the IRIS EECS-Secure wireless network continues to increase. We plan to expand the number of available IPv4 addresses for the IRIS EECS-Secure wireless network on the 18.104.22.168/23 network to a 22.214.171.124/22 network. To perform the expansion, we need to re-purpose the 126.96.36.199/24 network currently be using for wired networking on the second floor of Cory Hall.
Please contact the IRIS help desk (help@eecs, 395 Cory M-F 9:30am-5pm, 642-7777) if you have any questions or comments.
[2012-12-06 15:47:37 | Janet Shu]
Part of this “second floor Cory Hall IRIS wires network change”, APs at 2nd floor of Cory will be reconfigured to be on the new subnet between 7:00-8:00AM on 12/08 (Sat). You might be experiencing some intermittent wireless issues at 2nd floor of Cory.