List all network interfaces with their overview
AI agents call interface_list_overview to retrieve information from OPNSense MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves existing network interface data from the OPNSense firewall. It performs no modifications, deletions, execution of commands, or financial operations. The blast radius of misuse is minimal—an AI agent would only gain visibility into the network configuration, which is informational only. This is a straightforward data retrieval operation.
From the tool's definition Tool name 'interface_list_overview' and description 'List all network interfaces with their overview' indicate a read-only operation that retrieves network interface information without modification or side effects.
Documented attack patterns abuse exactly the kind of access interface_list_overview gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OPNSense MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for interface_list_overview:
{
"version": "1",
"default": "deny",
"tools": {
"interface_list_overview": {}
}
}interface_list_overview is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all network interfaces with their overview. It is categorised as a Read tool in the OPNSense MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OPNSense MCP Server MCP server in PolicyLayer and add a rule for interface_list_overview: 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 OPNSense MCP Server. Nothing to install.
interface_list_overview is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the interface_list_overview 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 interface_list_overview. 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.
interface_list_overview is provided by the OPNSense MCP Server MCP server (vespo92/opnsensemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 196 OPNSense MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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196 OPNSense MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.