Differences between version 7 and previous revision of MACAddress.
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| Newer page: | version 7 | Last edited on Tuesday, October 12, 2004 10:40:58 am | by SamJansen | Revert |
| Older page: | version 6 | Last edited on Tuesday, October 12, 2004 10:33:52 am | by JamieCurtis | Revert |
@@ -3,7 +3,16 @@
You have to 'reserve' part of the [MAC] address space when you make a network card, so everyone has a unique address. Since everyone's network card is unique, this is often used as a unique identifier for a machine (even though a machine may have multiple network cards, or not have one at all).
An [Ethernet] packet header contains the source and destination [Ethernet] [MACAddress]es and a [Protocol] (or Length) field.
+You can find out the [MACAddress] of your network cards using the ifconfig(8) utility. For example in Linux:
+ ~$ /sbin/ifconfig
+ eth0 Link encap:Ethernet HWaddr __00:07:A9:11:40:A8__
+ ...
+
+It may look different in other [Unix] variants, [OpenBSD] shows the following:
+ $ /sbin/ifconfig -a
+ rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
+ address: __00:05:1d:9b:f1:10__
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CategoryNetworking
