Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

gratuitous arp reply

Hi,

Why would a device sending gratuitous arp requests will also send the

gratuitous arp replies? What my understanding is that both will basically update the other hosts arp caches...so if request does it why need to send the reply?

Thanks

1 REPLY

Re: gratuitous arp reply

Hi,

I found this very interesting discussion at the Security Expert Study Group:

https://learningnetwork.cisco.com/thread/16335

Suprisingly the replies are used much more than requests.

Best regards

Rolf

363
Views
0
Helpful
1
Replies
CreatePlease to create content