Test connectivity between VLANs
AI agents invoke ssh_test_vlan_connectivity to trigger actions in OPNSense 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.
Testing connectivity between VLANs involves executing network probes (e.g., ping, traceroute, or similar diagnostics) across firewall boundaries. This is an Execute action as it triggers external network operations. Severity is medium because misuse could probe sensitive network segments or reveal network topology, though it doesn't modify configuration.
From the tool's definition "Test connectivity between VLANs" — actively tests/probes network connectivity between network segments
Documented attack patterns abuse exactly the kind of access ssh_test_vlan_connectivity 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 ssh_test_vlan_connectivity:
{
"version": "1",
"default": "deny",
"tools": {
"ssh_test_vlan_connectivity": {
"limits": [
{
"counter": "ssh_test_vlan_connectivity_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}ssh_test_vlan_connectivity 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.
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Test connectivity between VLANs. It is categorised as a Execute tool in the OPNSense MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the OPNSense MCP Server MCP server in PolicyLayer and add a rule for ssh_test_vlan_connectivity: 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.
ssh_test_vlan_connectivity is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the ssh_test_vlan_connectivity 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 ssh_test_vlan_connectivity. 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.
ssh_test_vlan_connectivity 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.
Free to start. No card required.
196 OPNSense MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.