Port 9340gRIBI (gRPC Routing Information Base Interface)

gRIBI lets network controllers program routing and forwarding entries on compatible network devices over gRPC.

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

also known as OpenConfig gRIBI, gRPC RIB

Technical Details

what runs on :9340

gRIBI uses gRPC over TCP, with gRPC's HTTP/2 transport and Protocol Buffers messages. A controller connects to the device's gRIBI service to add, replace, or remove entries in its abstract forwarding tables; the protocol includes mechanisms such as election IDs and acknowledgements for coordinating clients and reporting programming results. TCP port 9340 is the IANA-assigned port for the service. Encryption and authentication depend on the gRPC implementation and deployment; gRIBI itself does not make the connection encrypted by default.

Security Information

exposure of :9340

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 1,850 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

A reachable gRIBI endpoint may allow a client to alter the device's forwarding state, potentially redirecting or disrupting network traffic. Keep it on a restricted management or controller-to-device network, and use the implementation's authentication and TLS protections; do not expose it to the public internet.

Record

iana registry entry

port: :9340
service: gRIBI (gRPC Routing Information Base Interface)
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 7/10risk
category: Network Services
usage: This port is used by network devices implementing gRIBI to accept forwarding-table programming from a controller. Engineers are most likely to encounter it on a router or switch management network, rather than on a general-purpose server.
lookups: 0rank 993
added: 2026-10-15
updated: 2026-10-15
references: IANA service name registry — port 9340

Something wrong?

This record is maintained by the engineers who use port 9340. 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 2026-10-15.

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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 :9340gRIBI (gRPC Routing Information Base Interface)

Technical Details

Security Information

Related Ports

Port 9340gRIBI (gRPC Routing Information Base Interface)