manage_alias_addresses · pfSense Enhanced MCP Server MCP

WHAT IT DOES

What manage_alias_addresses does on pfSense Enhanced MCP Server

AI agents use manage_alias_addresses 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 manage_alias_addresses needs a policy

This tool modifies firewall alias data by adding or removing addresses. While reversible (addresses can be re-added), the impact is high because firewall aliases are often used in security rules and policies. Misuse could alter firewall behavior, unintended block/allow patterns, or expose networks. This is Write rather than Destructive because the changes are reversible—removed addresses can be restored.

From the tool's definition Tool name 'manage_alias_addresses' with description 'Add or remove addresses from an existing alias' indicates reversible modification of firewall alias configurations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

manage_alias_addresses Rate-limited

manage_alias_addresses 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": {
    "manage_alias_addresses": {
      "limits": [
        {
          "counter": "manage_alias_addresses_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 manage_alias_addresses

What does the manage_alias_addresses tool do? +

Add or remove addresses from an existing alias. 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 manage_alias_addresses? +

Register the pfSense Enhanced MCP Server MCP server in PolicyLayer and add a rule for manage_alias_addresses: 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 manage_alias_addresses? +

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

Can I rate-limit manage_alias_addresses? +

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

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

manage_alias_addresses 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.