DHCP requests to 1.1.1.1 and 3.3.3.3?

Published: 2011-01-06
Last Updated: 2011-01-07 18:30:51 UTC
by donald smith (Version: 2)
7 comment(s)

We had one reader write in today stating that they are seeing dhcp requests to 1.1.1.1 and 3.3.3.3.

DHCP packets should be sent to the broadcast address 255.255.255.255.

So if anyone has packets or an explanation for this traffic please write in to let us know your thoughts.

 

UPDATE

When I googled around for dhcp and 1.1.1.1 and 3.3.3.3 I found lots of links to cicso examples for dhcp and dhcp helper.

Several reader's wrote in pointing out those those two IP addresses appear in cisco DHCP examples.

So one current theory is someone was learning about DHCP and used the examples as is without changing the example ip addresses.

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