.. _basic_network-interfaces: ################## Network Interfaces ################## Configured interfaces on a VyOS system can be displayed using the ``show interfaces`` command. .. code-block:: none vyos@vyos:~$ show interfaces Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down Interface IP Address S/L Description --------- ---------- --- ----------- eth0 172.16.51.129/24 u/u OUTSIDE eth1 192.168.0.1/24 u/u INSIDE lo 127.0.0.1/8 u/u ::1/128 A specific interface can be shown using the ``show interfaces `` command. .. code-block:: none vyos@vyos:~$ show interfaces ethernet eth0 eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:53:29:44:3b:0f brd ff:ff:ff:ff:ff:ff inet 172.16.51.129/24 brd 172.16.51.255 scope global eth0 inet6 fe80::20c:29ff:fe44:3b0f/64 scope link valid_lft forever preferred_lft forever Description: OUTSIDE RX: bytes packets errors dropped overrun mcast 274397 3064 0 0 0 0 TX: bytes packets errors dropped carrier collisions 257276 1890 0 0 0 0 Different network interfaces provide type-specific configuration. Ethernet interfaces, for example, allow the configuration of speed and duplex. Many services, such as network routing, firewall, and traffic policy also maintain interface-specific configuration. These will be covered in their respective sections. .. toctree:: :maxdepth: 2 addresses ethernet pppoe