# add_mac_registration

Register a MAC address for Central NAC. mac_address e.g. 'aa:bb:cc:dd:ee:ff'.

Agent View of the PolicyLayer registry record for `add_mac_registration`. HTML page: https://policylayer.com/tools/hpe-networking-mcp/add-mac-registration

## Facts

- Tool: `add_mac_registration`
- Server: Hpe Networking (`secure-ssid/hpe-networking-mcp`) — https://policylayer.com/tools/hpe-networking-mcp.md
- Homepage: https://github.com/secure-ssid/hpe-networking-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "add_mac_registration",
    "arguments": {}
  }
}
```

## Why add_mac_registration is rated Medium

This tool creates a new MAC address registration in the Network Access Control system. It modifies the NAC database by adding an entry, which is a write-class operation. The severity is medium because while it could be misused to register unauthorized devices on the network (affecting network access control policies), the action is reversible through deletion of the registration.

From the tool's own definition: "'Register a MAC address for Central NAC' - the tool creates/registers a new MAC address entry in the NAC system, which is a reversible write operation."

## Use case

AI agents use add_mac_registration to create or update resources in Hpe Networking, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hpe Networking environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Hpe Networking:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_mac_registration": {
      "limits": [
        {
          "counter": "add_mac_registration_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Hpe Networking (594)

- `aos8_execute_migration_rollback` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/aos8-execute-migration-rollback.md
- `aos8_logout` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/aos8-logout.md
- `apstra_delete_connectivity_template` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/apstra-delete-connectivity-template.md
- `clear_alerts` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/clear-alerts.md
- `clearpass_delete_endpoint` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/clearpass-delete-endpoint.md
- `clearpass_delete_guest` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/clearpass-delete-guest.md
- `delete_aaa_profile` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-aaa-profile.md
- `delete_auth_profile` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-auth-profile.md
- `delete_auth_server` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-auth-server.md
- `delete_authz_policy` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-authz-policy.md
- `delete_config_assignment` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-config-assignment.md
- `delete_device_groups` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-device-groups.md
- `delete_device_notes` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-device-notes.md
- `delete_glp_role_assignment` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-glp-role-assignment.md
- `delete_glp_scope_group` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-glp-scope-group.md
- `delete_glp_scope_group_scopes` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-glp-scope-group-scopes.md
- `delete_gw_policy` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-gw-policy.md
- `delete_mac_registration` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-mac-registration.md
- `delete_mpsk_registration` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-mpsk-registration.md
- `delete_network_profile` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-network-profile.md
- `delete_notification_rule` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-notification-rule.md
- `delete_overlay_ssid` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-overlay-ssid.md
- `delete_report` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-report.md
- `delete_report_run` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-report-run.md
- `delete_role` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-role.md
- `delete_role_acl` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-role-acl.md
- `delete_server_group` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-server-group.md
- `delete_site_collections_bulk` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-site-collections-bulk.md
- `delete_sites_bulk` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-sites-bulk.md
- `delete_static_tag` — Destructive — https://policylayer.com/tools/hpe-networking-mcp/delete-static-tag.md
- …and 564 more: https://policylayer.com/tools/hpe-networking-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=hpe-networking-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/hpe-networking-mcp