Raspberry Pi A User Manual page 85

C H A P T E R 4
Called in this manner,
ifconfig
(see Figure 4-2). For the standard Raspberry Pi Model B, there are two ports: the physical
Ethernet port on the right side of the board, and a virtual loopback interface that allows pro-
grams on the Pi to talk to each other.
The output of
ifconfig
Link encap—The type of encapsulation used by the network, which on the Model B will
❍
either read
Ethernet
tual loopback adaptor.
Hwaddr—The Media Access Control (MAC) address of the network interface, written in
❍
hexadecimal. This is unique for every device on the network, and each Pi has its own
MAC address, which is set at the factory.
inet addr—The internet protocol (IP) address of the network interface. This is how you
❍
find the Pi on the network if you're using it to run a network-accessible service, such as
a web server or file server.
T R O U B L E S H O O T I N G
provides information on all the network ports it can find
is split into the following sections:
for the physical network port or for the vir-
Local Loopback
69
Figure 4-2:
The output of
ifconfig on
a Raspberry Pi
Model B