Accessing the System
20NM50-00 E2
2016-05-17
Page 31
3
Accessing the System
3.1
OpenWrt
OpenWrt is a highly extensible GNU/Linux distribution for embedded devices (typically
wireless routers). Unlike many other distributions for these routers, OpenWrt is built
from the ground up to be a full-featured, easily modifiable operating system for routers.
In practice, this means that you can have all the features you need with none of the
bloat, powered by a Linux kernel that's more recent than most other distributions.
3.1.1
OpenWrt Configuration
OpenWrt is configured using a command-line interface (linux shell, uci tool), or a web
interface (LuCI). There are about 3500 optional software packages available for
installation via the opkg package management system.
3.1.2
Default Configuration
In the default configuration, the NM50 uses the ETH1 Gigabit Ethernet interface as LAN
port and the ETH2 Gigabit Ethernet interface as WAN port. The WLAN interfaces are
disabled.
Figure 15.
Default configuration
Table 1.
Linux device names for the front panel interfaces
Connector Name
Usage
Linux Device Name
ETH1
LAN
eth0
ETH2
WAN
eth1
USB1
UART
tty
USB2
External Storage (USB stick)
sda1
X1, X2
radio0
wlan1
X3, X4
radio1
wlan2
X1
A
L
P
F
A
L
WLAN1
WLAN2
USB2
USB1
X10
ETH2
ETH1
PWR
X4
WAN
UART
LAN
radio1
radio0
