configure_default_gateway · Netmiko MCP Server MCP

WHAT IT DOES

What configure_default_gateway does on Netmiko MCP Server

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

WHY IT NEEDS A POLICY

Why configure_default_gateway needs a policy

This tool modifies network routing configuration by adding or changing a static default route on a router. While potentially reversible, misconfiguration can disrupt all network traffic routing through the device, making it high severity. It is a Write operation as it creates/modifies routing configuration rather than executing arbitrary code or destructively deleting data.

From the tool's definition Configure default gateway (static route) on a router

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

configure_default_gateway Rate-limited

configure_default_gateway 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": {
    "configure_default_gateway": {
      "limits": [
        {
          "counter": "configure_default_gateway_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 Netmiko MCP Server, so you can run agents against it safely.

FAQ

Questions about configure_default_gateway

What does the configure_default_gateway tool do? +

Configure default gateway (static route) on a router. It is categorised as a Write tool in the Netmiko MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on configure_default_gateway? +

Register the Netmiko MCP Server MCP server in PolicyLayer and add a rule for configure_default_gateway: 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 Netmiko MCP Server. Nothing to install.

What risk level is configure_default_gateway? +

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

Can I rate-limit configure_default_gateway? +

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

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

configure_default_gateway is provided by the Netmiko MCP Server MCP server (owen123-lang/netmiko_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.