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Clear ARP-Cache

September 15, 2011 by Igor Drobot Leave a Comment

Stupid situation if device X tries to communicate with Bob, but Bob send no answer to request. Bob has a problem, his ARP table is broken and he cant reach X.

Solve this problem by clearing the ARP information table: [Read more…]

Filed Under: Linux, Networking Tagged With: ARP, ARP cache, clear ARP

Juniper clear arp entrys

June 3, 2011 by Igor Drobot Leave a Comment

Sending IP packets on a multiaccess network requires mapping from an IP address to a MAC address (physical/hardware address like 00:02:b6:34:6a:2f).

In an ethernet environment, ARP is used to map a MAC address to an IP address.
ARP dynamically binds the IP address  to the correct MAC address.

You need a SSH Access to your juniper to proceed!

Show all ARP entrys:

1
ssg5-> get arp

ssg5-> get arp

Clear all dynamic entries from the ARP cache.

1
ssg5-> clear arp all

ssg5-> clear arp all

Also you can clear a single ARP entry:

1
ssg5-> clear arp 192.168.201.9

ssg5-> clear arp 192.168.201.9

Theoretical information was token from: juniper.net

Filed Under: Linux Tagged With: ARP cache, Juniper, Junos