Protocols About 1 min read

Protocol infrastructure

Addressing, identity, time, power and administration support the main application. Use these references when checking the services and interfaces underneath an integration.

Overview#

These pages cover the foundations reused by cameras, controllers, intercoms, alarms, building systems, and gateways. “Uses IP,” “uses TLS,” or “has an RS485 port” is only a layer statement; the application protocol and operational contract still have to be identified.

Concern Reference
Ethernet, IPv4/IPv6, TCP/UDP, multicast, VLANs, NAT, segmentation IP transport and segmentation
DHCP, DNS, mDNS/DNS SD, WS Discovery, LLDP Discovery and addressing
NTP/NTS, PTP, monotonic and event time Time synchronisation
SNMP, syslog, SSH/SFTP, secure management Monitoring and secure administration
802.1X/EAP/RADIUS, LDAP, Active Directory, Kerberos AAA and network access
SAML 2.0, OpenID Connect, OAuth security, enterprise SSO Enterprise federation with SAML and OIDC
SCIM provisioning, joiner/mover/leaver, reconciliation, asynchronous signals SCIM identity provisioning
WebAuthn, FIDO2, CTAP, passkeys, cross device authentication WebAuthn, FIDO, and passkeys
TLS, mutual TLS, X.509 and certificate operations TLS, PKI, and secure transport
UART, TIA 232/422/485 and serial gateways Serial transports
WiFi, Bluetooth, Zigbee, Thread, Z Wave, LoRaWAN, NFC Wireless and low power links
PoE, USB, GPIO, relay and supervised circuits Power, USB, and GPIO

Shared rule#

For each dependency record protocol/version, endpoint and authenticated identity, addresses, ports/media, direction, expected rates, timeout/retry, maximum sizes, trust roots or keys, authorisation, clock dependency, monitoring, owner, safe failure, and recovery. Discovery output and source addresses populate candidates; they don't establish identity or authorisation.

Safety boundary#

Network scans, multicast discovery, time changes, AAA changes, serial attachment, radio commissioning, PoE cycling, USB insertion, GPIO drive, and relay operation can interrupt or actuate physical security systems. These references grant no authority for those actions. Use offline configuration review for research and the asset owner's approved commissioning process for environment acceptance.

Primary source directories#

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