Related Documentation
- EX, J, M, MX, PTX, SRX, T Series
- clear arp
- EX, J, M, MX, PTX, T Series
- set cli logical-system
show arp
Syntax
Release Information
Command introduced before Junos OS Release 7.4.
expiration-time option added in Junos OS Release 8.1.
logical-system and vpn options added in Junos OS Release 10.1.
Description
Display all entries in the Address Resolution Protocol (ARP) table. To display entries for a particular logical system only, first enter the set cli logical-system logical-system-name command, and then enter the show arp command.
Options
none | — | Display the entries in the ARP table. |
expiration-time | — | (Optional) Display the amount of time, in seconds, until each ARP entry is set to expire. |
logical-system logical-system-name | — | (Optional) Display ARP entries for the specified logical system; only available on the main router context. |
no-resolve | — | (Optional) Do not attempt to determine the hostname that corresponds to the IP address. |
vpn vpn-name | — | (Optional) Display entries in the ARP table for the specified virtual private network’s (VPN) routing table. |
Required Privilege Level
view
Related Documentation
- EX, J, M, MX, PTX, SRX, T Series
- clear arp
- EX, J, M, MX, PTX, T Series
- set cli logical-system
List of Sample Output
show arpshow arp no-resolve
show arp expiration-time
Output Fields
Table 1 describes the output fields for the show arp command. Output fields are listed in the approximate order in which they appear.
Table 1: show arp Output Fields
Field Name | Field Description |
|---|---|
MAC Address | Media access control (MAC) address that corresponds to the IP address. |
Address | IP address that corresponds to the hostname. |
Name | Hostname. |
Interface | Interface name. |
Flags | (no-resolve option only) Indicates how mappings between IP and MAC addresses are defined:
|
TTE | (expiration-time option only) Amount of time, in seconds, until ARP entry is set to expire. |
Sample Output
show arp
user@host> show arp MAC Address Address Name Interface 00:e0:81:22:fd:74 192.168.64.10 firewall.my.net fxp0.0 00:04:5a:65:78:e1 192.168.65.13 lab.my net fxp0.0
show arp no-resolve
user@host> show arp no-resolve MAC Address Address Interface Flags 00:90:69:96:00:01 10.10.45.5 fe-0/0/1.0 none 00:00:00:00:00:01 200.200.200.1 fe-0/0/0.0 permanent published 00:00:00:00:00:02 200.200.200.2 fe-0/0/0.0 permanent 00:90:69:91:b0:00 200.200.200.3 fe-0/0/0.0 none Total entries: 4
show arp expiration-time
user@host> show arp expiration-time MAC Address Address Name Interface Flags TTE 00:a0:a5:12:3e:d4 10.0.0.5 10.0.0.5 fxp1.0 none 00:e0:81:22:fd:74 192.168.64.10 supernova.englab.juniper. fxp0.0 none 1491 00:30:48:84:03:56 192.168.65.46 kgb.englab.juniper.net fxp0.0 none 1279 00:03:ba:12:f7:5e 192.168.65.226 nmssun1-eri0.englab.junip fxp0.0 none 452 00:90:69:8e:b0:fc 192.168.71.254 stonewall-ge-200.englab.j fxp0.0 none 1421 Total entries: 5
