Wired Networking

IT provides high speed wired network connections to the Laboratory.

Most systems can just plug-in to a working jack and receive a Dynamic (DHCP) address.

(from wikipedia)
The Dynamic Host Configuration Protocol (DHCP) is a set of rules used by communications devices such as a computer, router or network adapter to allow the device to request and obtain an IP address from a server which has a list of addresses available for assignment.

DHCP is a protocol used by networked computers (clients) to obtain IP addresses and other parameters such as the default gateway, subnet mask, and IP addresses of DNS servers from a DHCP server. The DHCP server ensures that all IP addresses are unique, e.g., no IP address is assigned to a second client while the first client’s assignment is valid (its lease has not expired). Thus IP address pool management is done by the server and not by a human network administrator.

Cyber Security Advisory:

For the vast majority of systems it is recommend to use DHCP. DHCP gives systems more network flexibility than a static IP. Staff can reliably refer to their DHCP host by using [hostname].dhcp.lbl.gov. The only reason staff need to get a static IP address is if they intend to offer services beyond those listed below to the Internet.

https://commons.lbl.gov/display/cpp/Perimeter+Protection

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By utilizing a fixed IP address, systems will be fully exposed to network traffic at the LBL Border. By requesting this address, staff are indicating that they understand the additional risks presented and that they will (as always) take appropriate precautions to secure their system.

Getting Started

• To set up a wired connection for a computer, first determine if there is an active connection in the intended room. Simply plug a computer into a wall jack (staff will probably have to “release and renew” their IP address. If results are unsatisfactory, contact IT at lblnet@lbl.gov.
• If an existing jack is inactive, or if there is no available jack, submit a request via email to lblnet@lbl.gov for activation or for a new jack. For current charges, see the Rates List.
• To configure a computer, please see IT’s FAQ.
• Subnets at LBNL

Rates

Wired network connections are part of the Berkeley Lab Technology Resource Kit and are provided at no recharge. Labor to enable and repair network drops and build out new network connections is charged at a nominal rate.

Having Trouble?

If you are having trouble accessing the wired network, be sure to check Onestop , which will tell you if your device has been blocked from the network for any reason.