AI agents call zeek_dhcp_asset_map to retrieve information from Zeek without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and parses DHCP log data to construct a mapping of MAC addresses to IPs/hostnames. It is purely a read/query operation with no side effects — it retrieves and organizes existing log data without modifying, executing, or deleting anything.
From the tool's definition Build an asset map from DHCP logs: MAC address to IP/hostname mappings
Attacks that exploit this kind of access
Build an asset map from DHCP logs: MAC address to IP/hostname mappings. Useful for identifying all devices on the network and spotting unknown/rogue devices. It is categorised as a Read tool in the Zeek MCP Server, which means it retrieves data without modifying state.
Register the Zeek MCP server in PolicyLayer and add a rule for zeek_dhcp_asset_map: 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 Zeek. Nothing to install.
zeek_dhcp_asset_map 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 zeek_dhcp_asset_map 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 zeek_dhcp_asset_map. 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.
zeek_dhcp_asset_map is provided by the Zeek MCP server (solomonneas/zeek-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.
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