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Home > Technical
Support > DSL Support > MAC Address > Unix/Linux/Mac OSX
The easiest
way to find your ethernet hardware address in a *nix like operating system
is to use the ifconfig command. Open up a terminal or shell window and run
ifconfig. Example outputs are below.
You may
need to specify the entire path to ifconfig to get the information you are
looking for. If you can not find ifconfig try "locate ifconfig".
The examples below have the MAC address highlighted. Be sure to record the MAC address
of your ethernet interface. The loopback ("lo") interface is a virtual internal
address that cannot be bound to an IP.
Linux
bash%
/sbin/ifconfig -a
| eth0: |
Link
encap:Ethernet HWaddr 00:A0:C9:D5:A5:48
inet
addr:10.16.1.7 Bcast:10.16.1.255 Mask:255.255.255.0
UP
BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX
packets:6567474 errors:0 dropped:0 overruns:0 frame:0
TX
packets:5819193 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
txqueuelen:100
RX
bytes:4102207348 (3.8 GiB) TX bytes:838733328 (799.8 MiB)
Interrupt:10
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| lo: |
Link
encap:Local Loopback
inet
addr:127.0.0.1 Mask:255.0.0.0
UP
LOOPBACK RUNNING MTU:16436 Metric:1
RX
packets:403163 errors:0 dropped:0 overruns:0 frame:0
TX
packets:403163 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
txqueuelen:0
RX
bytes:20166974 (19.2 MiB) TX bytes:20166974 (19.2 MiB)
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Mac
OSX
bash%
ifconfig
| lo0: |
flags=8049<UP,LOOPBACK,RUNNING,MULTICAST>
mtu
16384 inet
127.0.0.1 netmask 0xff000000
|
| en0: |
flags=8863<UP,BROADCAST,b6,RUNNING,SIMPLEX,MULTICAST>
mtu 1500
inet
10.16.1.27 netmask 0xffff0000
broadcast
10.16.255.255
ether
00:50:e4:90:eb:26
media:
autoselect (10baseT/UTP <half-duplex>)
status:
active
supported
media: none
autoselect
10baseT/UTP <half-duplex>
10baseT/UTP
<full-duplex>
100baseTX
<half-duplex>
100baseTX
<full-duplex>
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UNIX
bash%
ifconfig
| exp0: |
flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
link
type ether 0:a0:c9:9b:e:a9 mtu 1500 speed 100Mbps
media
100baseTX
full_duplex
status active
inet
192.168.1.23
netmask
255.255.255.0
broadcast
192.168.1.255
inet6
fe80::2a0:c9ff:fe9b:ea9%exp0 prefixlen
64 scopeid
0x0001
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| lo0: |
flags=8009<UP,LOOPBACK,MULTICAST>
link
type loop mtu 4352
inet6
::1 prefixlen 128
inet6
fe80::1%lo0 prefixlen 64 scopeid 0x0002
inet
127.0.0.1
netmask
255.0.0.0
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