Port 8190Remote PHY Generic Control Protocol (GCP)

TCP port 8190 carries GCP control and configuration traffic between a CCAP core and Remote PHY devices.

transport: tcp
in transit: cleartext
assignment: official
risk: 7/10
lookups: 0

also known as gcp-rphy, GCP

Technical Details

what runs on :8190

GCP is the control-plane protocol in CableLabs' Remote PHY architecture, carried over TCP port 8190 between the CCAP core and RPD. It exchanges framed control and configuration messages, including TLV-encoded data, for device setup, operation, and status. TCP provides the transport; encryption is not inherent in the port or GCP framing and depends on the deployment's configured transport security.

Security Information

exposure of :8190

risk score

7/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

network services averages 2.6 across 1,809 ports — this one sits 4.4 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

This is a sensitive network-management interface: an attacker who can reach it may be able to interfere with RPD configuration or operation and disrupt cable access service. It should be restricted to the operator's trusted management/control network, not exposed to the public internet; use any supported transport security and access controls rather than assuming TCP port 8190 is protected.

Record

iana registry entry

port: :8190
service: Remote PHY Generic Control Protocol (GCP)
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 7/10risk
category: Network Services
usage: Cable operators use GCP to control and configure Remote PHY Devices (RPDs) from a Converged Cable Access Platform (CCAP) core. It is normally found on managed cable-access networks, not on general-purpose internet-facing servers.
lookups: 0rank 993
added: 2026-10-14
updated: 2026-10-14
references: IANA service name registry — port 8190

Something wrong?

This record is maintained by the engineers who use port 8190. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-14.

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edit this record →back to the registry

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :8190Remote PHY Generic Control Protocol (GCP)

Technical Details

Security Information

Related Ports

Port 8190Remote PHY Generic Control Protocol (GCP)