© 2021 Outpost24® All rights reserved. This document may only be redistributed unedited and unaltered. This document may be cited and referenced only if clearly crediting Outpost24® and this document as the source. Any other reproduction and redistribution in print or electronically is strictly prohibited without explicit permission.


Outpost24® and OUTSCAN™ are trademarks of Outpost24® in Sweden and other countries.


This guide provides the Outpost24 network scanning range information. 

Network Scanning Range

Firewalls, IDSs and IPSs may interfere with the security scan if they have a reactive defence mechanism. In such case, we recommend to set up OUTSCAN (CIDR IP range,, IPv6 range 2001:67c:1084::/48) as a trusted range.


The scanning occurs from within the below range:

  • For IPv4: to, to
  • For IPv6: 2001:67c:1084::0 to 2001:067c:1084:ffff:ffff:ffff:ffff:ffff.