Static¶
Static routes are manually configured routes, which, in general, cannot be updated dynamically from information VyOS learns about the network topology from other routing protocols. However, if a link fails, the router will remove routes, including static routes, from the RIPB that used this interface to reach the next hop. In general, static routes should only be used for very simple network topologies, or to override the behavior of a dynamic routing protocol for a small number of routes. The collection of all routes the router has learned from its configuration or from its dynamic routing protocols is stored in the RIB. Unicast routes are directly used to determine the forwarding table used for unicast packet forwarding.
Static Routes¶
Defines next-hop distance for this route, routes with smaller administrative distance are elected prior those with a higher distance.
Range is 1 to 255, default is 1.
Note
Routes with a distance of 255 are effectively disabled and not installed into the kernel.
Defines next-hop distance for this route, routes with smaller administrative distance are elected prior those with a higher distance.
Range is 1 to 255, default is 1.
Note
Routes with a distance of 255 are effectively disabled and not installed into the kernel.
Interface Routes¶
Defines next-hop distance for this route, routes with smaller administrative distance are elected prior those with a higher distance.
Range is 1 to 255, default is 1.
Blackhole¶
ARP¶
ARP is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite. ARP was defined in 1982 by RFC 826 which is Internet Standard STD 37.
In Internet Protocol Version 6 (IPv6) networks, the functionality of ARP is provided by the Neighbor Discovery Protocol (NDP).
To manipulate or display ARP table entries, the following commands are implemented.
Configure¶
Operation¶
vyos@vyos:~$ show protocols static arp
Address HWtype HWaddress Flags Mask Iface
10.1.1.1 ether 00:53:00:de:23:2e C eth1
10.1.1.100 ether 00:53:00:de:23:aa CM eth1
vyos@vyos:~$ show protocols static arp interface eth1
Address HWtype HWaddress Flags Mask Iface
10.1.1.1 ether 00:53:00:de:23:2e C eth1
10.1.1.100 ether 00:53:00:de:23:aa CM eth1