This article explains the steps to configure a static Arp on an IRB interface

The below error is seen when we try to configure a static arp entry on an irb interface without specifying a physical l2-interface to it:

{master:0}[edit]
root@switch#set interfaces irb unit 0 family inet address 10.0.0.0/8  arp 10.0.0.3 mac 00:00:5E:00:53:00


{master:0}[edit]

root@switch# commit
[edit interfaces irb unit 0 family inet]
 'address 10.0.0.0/8 '
  Static arp on an irb interface needs to specify l2-interface
error: configuration check-out failed

Whenever we configure a static ARP entry for an IRB interface, we also need to specify the physical L2 interface to which the end device is connected. Post configuring the below knob the error was cleared:

#set interfaces irb unit 0 family inet address 10.0.0.0/8  arp 10.0.0.3 l2-interface ae0.0 mac 00:00:5E:00:53:00

2025-02-05 : Article Created

2025-02-06 : Article Validated