Prefix Lists

A prefix list is a named, reusable group of IP networks (single IPs or CIDR ranges, e.g. 192.168.1.0/24). Once created, you attach it to a protection profile and use it to blacklist or whitelist that traffic. Open DDoS Mitigation → Prefix Lists in my.cubepath.com.

List overview

The table shows every prefix list with its Name, Description, the number of Entries it holds, and its Type:

  • Custom — lists you create and fully manage.
  • Global — built-in, shared lists. They are read-only: you can view their entries but not edit or delete them.

Use the search box to filter by name or description.

Create a prefix list

  1. Click Create Prefix List.
  2. Enter a Name (e.g. Blocked Datacenters) and an optional Description.
  3. Click Create.

The new list starts empty — add networks to it next.

Manage entries

Click Entries on any list to view its networks.

  • For Custom lists, type an IP or CIDR (e.g. 192.168.1.0/24) in the field and click Add. Remove a network with the X next to it.
  • For Global lists, entries are shown read-only.

Note: A single IP works too — a /32 (IPv4) or /128 (IPv6) suffix is normalized automatically.

How it's applied

A prefix list does nothing on its own. In a Protection Profile, set Prefix List Mode to Blacklist (drop traffic from the assigned prefixes) or Whitelist (allow only that traffic), then select which lists apply. Leave it Off to ignore prefix lists for that profile.

Delete a prefix list

Click the trash icon on a Custom list and confirm. This removes all its entries and unassigns it from any protection profiles. Global lists cannot be deleted. This action cannot be undone.