Addresses promises are used to allow a form of ARP teleportation for layer 2 tunnelling, where address spaces do not automatically map across the tunnel. VxLAN is an example of this. Layer 2 MAC addresses need to be integrated across the tunnel end-points, but require registration. This promise type is for mainly specialized usage.

Attributes

link_address

Description: The link level (MAC) address of the promiser

Type: MAC address

delete_link

Description: If this link mapping exists, remove it

Type: boolean

interface

Description: Interface for neighbour discovery

Type: string

Example

```cf3 vars:

# LAN IP LOCATION LAN MAC BINDING “arp[10.1.1.1][switch1]” string => “00:00:10:00:00:0A”; “arp[10.1.1.2][switch1]” string => “00:00:10:00:00:0B”; “arp[10.1.1.3][switch2]” string => “00:00:10:00:00:0C”; “arp[10.1.1.4][cflu-10004]” string => “00:00:10:00:00:0D”;
“arp[10.1.1.5][cflu-10004]” string => “00:00:10:00:00:0E”; “arp[10.1.1.6][switch4]” string => “00:00:10:00:00:0F”;

addresses:

# Host ARP bindings

”$(ip_address)” comment => “Teleport a static ARP binding for the VxLAN”, link_address => “$(arp[$(ip_address)][$(sys.uqhost)])”, interface => “eth0”; ```