Port 3145Lightweight Flow Accounting Protocol (LFAP)

LFAP carries network-flow accounting data from network equipment to a collection system.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as csi-lfap, LFAP

Technical Details

what runs on :3145

LFAP (Lightweight Flow Accounting Protocol) is used to convey flow-accounting records from network equipment to an accounting collector. IANA assigns port 3145 for both TCP and UDP under the service name CSI-LFAP. It is a legacy, specialized protocol rather than a general-purpose application service; detailed handshake and framing behavior should not be inferred from the port assignment alone.

Security Information

exposure of :3145

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 2.7 across 1,359 ports — this one sits 0.7 below.

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 · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

LFAP traffic is not encrypted by default, so flow records may reveal network-usage metadata. This is a niche legacy service and should not be exposed to the public internet; if port 3145 is open unexpectedly, identify the process and verify its purpose. IANA reports unauthorized use of the assignment.

Record

iana registry entry

port: :3145
service: Lightweight Flow Accounting Protocol (LFAP)
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services
usage: LFAP is a legacy protocol for exporting flow-accounting information from network devices to a collector. It is niche and is not commonly encountered on publicly scanned hosts; the IANA assignment is registered to Paul Amsden.
lookups: 0rank 993
added: 2026-09-27
updated: 2026-09-27
references: IANA service name registry — port 3145

Something wrong?

This record is maintained by the engineers who use port 3145. 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 2026-09-27.

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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 :3145Lightweight Flow Accounting Protocol (LFAP)

Technical Details

Security Information

Related Ports

Port 3145Lightweight Flow Accounting Protocol (LFAP)