pfsense_delete_firewall_nat_one_to_one_mapping
AI agents call pfsense_delete_firewall_nat_one_to_one_mapping to permanently remove resources in Pfsense — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly deletes firewall NAT one-to-one mappings, which is a destructive action that cannot be undone. NAT mappings are critical network infrastructure; their deletion could disrupt network connectivity and traffic flow. The blast radius is critical because misconfiguration or malicious deletion could render network services inaccessible or expose internal systems.
From the tool's definition Tool name includes 'delete' and operates on firewall NAT mappings. The server description confirms it provides 'full control over pfSense firewalls' with tools covering 'NAT' configurations.
Attacks that exploit this kind of access
pfsense_delete_firewall_nat_one_to_one_mapping. It is categorised as a Destructive tool in the Pfsense MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_delete_firewall_nat_one_to_one_mapping: 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. Nothing to install.
pfsense_delete_firewall_nat_one_to_one_mapping is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the pfsense_delete_firewall_nat_one_to_one_mapping 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.
Set action: deny in the PolicyLayer policy for pfsense_delete_firewall_nat_one_to_one_mapping. 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.
pfsense_delete_firewall_nat_one_to_one_mapping is provided by the Pfsense MCP server (abl030/pfsense-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →