Gratuitous ARP and "ifstat -restart <iface>"

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Peter
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Joined: 10 Apr 2008, 14:14
Location: Clavister HQ - Örnsköldsvik

Gratuitous ARP and "ifstat -restart <iface>"

Post by Peter » 06 Mar 2017, 10:59

This FAQ applies to:
  • Clavister cOS Core all versions
Question:

If i use the CLI command "ifstat -restart <interface>" on an interface, is cOS Core then sending out a Gratuitous ARP for the interface IP when the restart is complete?

Answer:

Yes, cOS Core sends out a gratuitous ARP when this command is issued similar to when the system starts up.

If there is a problem in the network and using this command (or arp -notify <ip> <interface>) solve the problem temporary it could be an indication of a network problem or possible IP conflict.

Note: this only applies to the interface address, not Proxy ARP or ARP Published IP addresses.

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