> For the complete documentation index, see [llms.txt](https://docs.radiusaas.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.radiusaas.com/admin-portal/access-and-rules/rules/groups.md).
# Groups
The Groups tab centralizes reusable named sets of values, so a rule references the group instead of listing raw values directly. RADIUSaaS offers six kinds:
* SSID groups
* Access-point MAC groups
* Switch groups
* NAS identifier groups
* NAS IP address groups
* Client IP groups
Members can be added or removed from a group later without touching any rule that references it.
### Creating a Group
Creating a group asks for a name and an optional description, plus the members themselves, which can be added one at a time or pasted in bulk.
### Paste a List
To enter group members in bulk, you use the "Paste a list..." option to then paste your desired entries. The entries can be either one per line or comma separated.
Clicking Add to list will then deduplicate the entries and add them to the list of members.
### Prefixes
Some of the groups support prefixing to wild-card match multiple values. These are SSIDs, NAS-Identifiers and all MAC-based groups.
Such prefixed members will be shown with the "PREFIX" tag:
### MAC Addresses
For MAC address-based groups, different formats are supported and will be normalised on save.
Any separator, or none at all, will work as well as prefixing the addresses.
### IP Addresses
For IP address-based groups, a single address (10.20.0.11) or a CIDR range (10.30.0.0/16). IPv4 and IPv6 both work.
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