mikrotik_add_default_route · MikroTik MCP: Risk & Policy

WHAT IT DOES

What mikrotik_add_default_route does on MikroTik MCP

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

WHY IT NEEDS A POLICY

Why mikrotik_add_default_route needs a policy

Adding a default route modifies the router's routing table, which is a reversible write operation. However, it carries high severity because misconfiguring the default route (0.0.0.0/0) on a MikroTik router can redirect all network traffic, causing complete network outages or traffic interception for all connected devices.

From the tool's definition 'Adds a default route (0.0.0.0/0)' — creates a new routing table entry that directs all unmatched traffic

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mikrotik_add_default_route Rate-limited

mikrotik_add_default_route 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": {
    "mikrotik_add_default_route": {
      "limits": [
        {
          "counter": "mikrotik_add_default_route_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches MikroTik MCP, so you can run agents against it safely.

FAQ

Questions about mikrotik_add_default_route

What does the mikrotik_add_default_route tool do? +

Adds a default route (0.0.0.0/0). It is categorised as a Write tool in the MikroTik MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mikrotik_add_default_route? +

Register the MikroTik MCP server in PolicyLayer and add a rule for mikrotik_add_default_route: 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 MikroTik MCP. Nothing to install.

What risk level is mikrotik_add_default_route? +

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

Can I rate-limit mikrotik_add_default_route? +

Yes. Add a rate_limit block to the mikrotik_add_default_route 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 mikrotik_add_default_route completely? +

Set action: deny in the PolicyLayer policy for mikrotik_add_default_route. 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 mikrotik_add_default_route? +

mikrotik_add_default_route is provided by the MikroTik MCP server (tarcisiodier/mcp-mikrotik). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.