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Cisco SD-WAN
Product Documentation
Viptela Documentation


vpn interface arp—Configure an ARP table entry for an interface in a VPN (on vEdge routers only).

Address Resolution Protocol (ARP) resolves network layer IP address to a link layer physical address, such as an Ethernet MAC address. By default, ARP is enabled on vEdge routers, and they maintain an ARP cache that maps IP addresses to MAC addresses for devices in their local network. To learn a device's MAC address, vEdge routers broadcast ARP messages to that device's IP address, requesting the MAC address.

vManage Feature Template

For vEdge routers only:

Configuration ► Templates ► VPN Interface Bridge
Configuration ► Templates ► VPN Interface Cellular (for vEdge cellular wireless routers only)
Configuration ► Templates ► VPN Interface Ethernet
Configuration ► Templates ► VPN Interface PPP Ethernet

Command Hierarchy

vpn vpn-id
   interface interface-name
      ip ip-address mac mac-address


Add a Permanent ARP Table Entry
ip ip-address mac mac-address
Configure a permanent (static) ARP table entry. Enter the IP address for the ARP entry in dotted decimal notation or as a fully qualified host name. Enter the MAC address in colon-separated hexadecimal notation.
Disable ARP
no arp ip ip-address
Remove a static ARP mapping address.

Operational Commands

clear arp
show arp


Configure a permanent MAC address for the ARP table:

vpn 0
 interface ge0/0
    arp ip mac 00:10:FA:B5:AE:15

Release Information

Command introduced in Viptela Software Release 14.1.​

Additional Information

See the Segmentation CLI Reference article for your software release.

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