ping_sweep · Netmiko MCP Server MCP: Risk & Policy

WHAT IT DOES

What ping_sweep does on Netmiko MCP Server

AI agents invoke ping_sweep to trigger actions in Netmiko MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why ping_sweep needs a policy

A ping sweep executes active network reconnaissance by sending ICMP echo requests to multiple hosts. This is an Execute category action because it triggers external network operations (sending packets to potentially many hosts) whose scope and impact depend on the arguments (e.g., subnet range).

From the tool's definition 'Perform ping sweep to discover active hosts on network' — actively sends ICMP packets across a network range, triggering external network operations

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ping_sweep Rate-limited

ping_sweep 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.

View as policy code

policy.json

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

RATE-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 ping_sweep

What does the ping_sweep tool do? +

Perform ping sweep to discover active hosts on network. It is categorised as a Execute tool in the Netmiko 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 ping_sweep? +

Register the Netmiko MCP Server MCP server in PolicyLayer and add a rule for ping_sweep: 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 ping_sweep? +

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

Can I rate-limit ping_sweep? +

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

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

ping_sweep 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.