bulk_block_ips · pfSense Enhanced MCP Server MCP

WHAT IT DOES

What bulk_block_ips does on pfSense Enhanced MCP Server

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

WHY IT NEEDS A POLICY

Why bulk_block_ips needs a policy

Blocking IPs modifies firewall rules to deny traffic from specified addresses. This is a Write operation (creates/modifies firewall rules) rather than Destructive because the blocks can be reversed by removing the rules. However, severity is high because misuse could block legitimate traffic, cause outages, or be used to lock out administrators from the firewall itself.

From the tool's definition Block multiple IP addresses at once

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bulk_block_ips Rate-limited

bulk_block_ips 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": {
    "bulk_block_ips": {
      "limits": [
        {
          "counter": "bulk_block_ips_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 pfSense Enhanced MCP Server, so you can run agents against it safely.

FAQ

Questions about bulk_block_ips

What does the bulk_block_ips tool do? +

Block multiple IP addresses at once. It is categorised as a Write tool in the pfSense Enhanced 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 bulk_block_ips? +

Register the pfSense Enhanced MCP Server MCP server in PolicyLayer and add a rule for bulk_block_ips: 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 pfSense Enhanced MCP Server. Nothing to install.

What risk level is bulk_block_ips? +

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

Can I rate-limit bulk_block_ips? +

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

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

bulk_block_ips is provided by the pfSense Enhanced MCP Server MCP server (mmaxwellcb/pfsesen_mcp_2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.