openwrt_restart_interface

THE RISK

High Risk

Why openwrt_restart_interface needs a policy

This tool executes a restart command on network interfaces, which is a live system operation with real-world effects. While not destructive (the interface can be restarted again) nor Financial, it represents Execute category—triggering external operations whose consequences depend on the specified interface. Misuse could disrupt network connectivity, causing service outages.

From the tool's definition Tool name 'openwrt_restart_interface' and description 'Restart a network interface' indicate execution of a system command that triggers external operations (network interface state changes) whose effects depend on arguments (which interface to restart).

Documented attack patterns abuse exactly the kind of access openwrt_restart_interface gives an agent:

POLICY

How to control openwrt_restart_interface

PolicyLayer is an MCP gateway — it sits between your AI agents and OpenWRT SSH MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for openwrt_restart_interface:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "openwrt_restart_interface": {
      "limits": [
        {
          "counter": "openwrt_restart_interface_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

openwrt_restart_interface stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register OpenWRT SSH MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More OpenWRT SSH MCP Server tools

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All 23 OpenWRT SSH MCP Server tools →

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Go deeper

High-risk tools in OpenWRT SSH MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about openwrt_restart_interface

What does the openwrt_restart_interface tool do? +

Restart a network interface (e.g., wan, lan, wlan0). It is categorised as a Execute tool in the OpenWRT SSH MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on openwrt_restart_interface? +

Register the OpenWRT SSH MCP Server MCP server in PolicyLayer and add a rule for openwrt_restart_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 OpenWRT SSH MCP Server. Nothing to install.

What risk level is openwrt_restart_interface? +

openwrt_restart_interface is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit openwrt_restart_interface? +

Yes. Add a rate_limit block to the openwrt_restart_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 openwrt_restart_interface completely? +

Set action: deny in the PolicyLayer policy for openwrt_restart_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 openwrt_restart_interface? +

openwrt_restart_interface is provided by the OpenWRT SSH MCP Server MCP server (jsebgiraldo/openwrt_ssh_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every OpenWRT SSH MCP Server tool call.

Start from OpenWRT SSH MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →