Difference: WiredNetworking (3 vs. 4)

Revision 42016-04-21 - GordonStewart

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 name="WebHome" 

 Wired Networking
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+The wired network generally offers better performance and reliability than the various wireless networks, and so it is recommended that it be used where possible.  Before a machine can make full use of the wired network, its MAC address must be registered by PPE IT support.
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+The wired network generally offers better performance and reliability than the various wireless networks, and so it is recommended that it be used where possible.  Before a machine can make full use of the wired network, its MAC address must be registered by PPE IT support.  The MAC address comprises six pairs of characters, usually separated by a colon or hyphen (e.g. 01:23:45:67:89:AB or 01-23-45-67-89-AB), and is also known as a 'hardware address' or 'physical address'.
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+Linux and Mac OS X users can obtain the MAC address of by using the ifconfig command.  The item of interest is usually labelled HWaddr, and will appear on a line which looks similar to the following:
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+Linux and Mac OS X users can obtain their computer's MAC address by using the ifconfig command.  The output will vary according to the operating system version; for example, under Scientific Linux 6 you are looking for a value labelled HWaddr:
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+$ ifconfig
 eth0      Link encap:Ethernet  HWaddr 00:23:AE:94:B1:1E
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+Under CentOS 7, the item of interest is labelled ether:
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+(See also CampusNetwork for some wider issues.)

The PPE network has one public subnet and several private subnets. If an unknown machine is connected to a PPE data sockets, it will receive an IP address within the restricted Un-Trusted subnet. Once a machine has been registered with the PPE ITManagement, it will be added to either the Trusted, Laptop or Public subnets depending on the machine type.

No machine should ever be given a static IP address without the prior knowledge and agreement of the ITManagement.

Any machine that is thought to be a risk to the PPE network as a whole will be placed in an un-routed private subnet, and will therefore not be able to send or receive any internet traffic.

 Laptop Subnet 

Browsing for Windows shares is not possible from the Laptop subnet, but  users can open Windows shares directly, e.g with Start->Run->\\ppesmb.




 Checking a PC's IP Configuration 

 Windows 
1. Open a command prompt via
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+Start->Run->cmd
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+ether 44:a8:42:0a:8e:06  txqueuelen 1000  (Ethernet)
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+. Type
ipconfig


(ipconfig options can be listed by typing ipconfig /?)
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+On Windows, the equivalent command is ipconfig which may be run from a command prompt (Start | Run... or Windows + R, then enter cmd).  The MAC address is labelled Physical Address:
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+ Linux 
1. Open a shell window.
2. Type
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+/sbin/ifconfig


(Further information can be found on the ifconfig man page.)
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+Ethernet adapter Local Area Connection:
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+Admin page: IT.SysAdmin.PPENetwork
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+   Connection-specific DNS Suffix  . : physics.gla.ac.uk
   Description . . . . . . . . . . . : Intel(R) Ethernet Connection I218-LM
   Physical Address. . . . . . . . . : 34-E6-D7-01-4C-55
   DHCP Enabled. . . . . . . . . . . : Yes
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+-- AndrewPickford - 03 Feb 2009
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+Your machine may have multiple MAC addresses (one for each wired Ethernet port, one for the wireless adapter, one for Bluetooth, etc.), in which case it is important to identify the correct one.  If you are unsure which address is which, please ask for advice or send a copy of the complete output to  PPE IT support.
  META TOPICMOVED 
 by="GordonStewart" date="1461161511" from="IT.PPENetwork" to="IT.WiredNetworking"
- META TOPICMOVED
+ by="GordonStewart" date="1461161511" from="IT.PPENetwork" to="IT.WiredNetworking"

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