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Signed entitlement, not a serial.

lattice.entitlement.json on disk. Verified with an embedded public key. No phone-home required.

Location

Default: /etc/lattice/entitlement.json. Override with LATTICE_ENTITLEMENT_PATH. Download from the customer portal after signup (community) or after a paid issue.

Enforcement

  • Over max_managed_ips: renew existing leases; refuse new Discover/Offer allocations and new reservations. API returns 402 / license_limit.
  • After expires_at plus grace_days (14): same as over-limit.
  • DHCP does not crash to enforce a cap.
  • No per-node license. Any number of dhcpd processes.

File shape

{
  "kid": "v1",
  "payload": {
    "spec": "lattice.entitlement/v1",
    "tier": "team",
    "max_managed_ips": 25000,
    "features": ["dhcpv4", "ipam", "api", "dns.bind_tsig", "dns.ad_gsstsig", "ha"]
  },
  "sig": "<base64 Ed25519>"
}

Signature is over canonical UTF-8 JSON of payload (keys sorted). Pretty-printing the file does not break verify. The public key is compiled into lattice-api.

Managed IPs = leased + reserved + quarantined. Prefix size is not the meter.