add_vlan_interface

A write tool on the Fortimanager MCP server.

SERVERFortimanager SOURCEjmpijll/fortimanager-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jmpijll-fortimanager-mcp/add-vlan-interface.md

WHAT IT DOES

What add_vlan_interface does on Fortimanager

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

RISK

Why add_vlan_interface is rated Medium

This tool creates or adds a VLAN interface configuration in FortiManager, which is a reversible Write operation. While the description is empty (lowering confidence slightly), the naming pattern and context of sibling tools strongly indicate it modifies network configuration data.

From the tool's definition Tool name 'add_vlan_interface' indicates creation of a network interface configuration. Sibling tools like 'add_device_to_group', 'add_interface_to_zone', 'add_policies_to_block', and 'add_template_to_group' all perform Write operations (creating or adding…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_vlan_interface safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Fortimanager, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_vlan_interface, this is the rule to start with:

add_vlan_interface Rate-limited

add_vlan_interface stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_vlan_interface": {
      "limits": [
        {
          "counter": "add_vlan_interface_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Fortimanager, apply this rule, and every add_vlan_interface call is checked against it from then on.

FAQ

Questions about add_vlan_interface

What does the add_vlan_interface tool do? +

add_vlan_interface is a write tool on the Fortimanager MCP server. It is categorised as a Write tool in the Fortimanager MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_vlan_interface? +

Register the Fortimanager MCP server in PolicyLayer and add a rule for add_vlan_interface: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Fortimanager. Nothing to install.

What risk level is add_vlan_interface? +

add_vlan_interface is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_vlan_interface? +

Yes. Add a rate_limit block to the add_vlan_interface rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block add_vlan_interface completely? +

Set action: deny in the PolicyLayer policy for add_vlan_interface. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides add_vlan_interface? +

add_vlan_interface is provided by the Fortimanager MCP server (jmpijll/fortimanager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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