lo stands for loopback. That's an internal pseudo device tied to the 127.0.0.1 (localhost) IP address.
If the wireless card is working under windows, you can type "ipconfig /all" at the command prompt, it'll return the "physical address".
I have the emachine m5310 and I wanted to try using the program from www.linuxant.com to get my broadcom wireless card to work. I need to know my mac address in order to download a key. If i use ifconfig -a it shows eth0 and lo. Eth0 is my wired nic i think. What is lo? How can I find the wireless mac address? It doesnt detect the wireless card.
lo stands for loopback. That's an internal pseudo device tied to the 127.0.0.1 (localhost) IP address.
If the wireless card is working under windows, you can type "ipconfig /all" at the command prompt, it'll return the "physical address".
The mac address is also often printed on the card

Dell PowerEdge M630 Blade Server 2x Xeon E5-2680 v4, 2F3MP , 4GDP5 ,R10KJ ,JVFVR
$96.60
Dell PowerEdge M640 Blade Barebone Server Dell P/N: HHB006 Tested Working
$149.99
NEW DELL TRUSTED PLATFORM MODULE TPM 2.0 POWEREDGE T430 T630 G13 SERVERS K98XH
$225.00
Dell PowerEdge M620 Blade Server 2x Xeon E5-2680v2 256GB DDR3 RAM NO HDD
$349.99
NETAPP HCI NAF-1701 SuperMicro Server 4X BLADE H410C 8X GOLD 5120 4 NODE SERVER
$1499.97
Dell PowerEdge VRTX 2.5"x25 Bay Blade Enclosure 4x1600W + 4X M640 (4X Blades)
$1599.99
HPE Synergy 480 Gen10 Blade Server BAREBONES NO CPU, RAM OR HDD 🚚
$140.00
Dell PowerEdge M640 Blade Server 2x Gold 5118 12C 64GB 2x 480GB SSD H330
$2139.00
NEW DELL TRUSTED PLATFORM MODULE TPM 2.0 POWEREDGE R730 SERVER M48YR RXW6R K98XH
$225.00
Supermicro 938-16 16-LFF MicroCloud SuperServer 5038MR-H8TRF *No Blade Servers*
$159.99