Port 4145Veritas Volume Replicator Control

Veritas Volume Replicator control traffic between hosts participating in storage replication.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 5/10
lookups: 0

also known as vvr-control, VVR

Technical Details

what runs on :4145

VVR is a proprietary block-storage replication system that coordinates replicated volumes between primary and secondary hosts. Port 4145 is assigned as its control service; VVR deployments also use port 8199 for replication data. The registry lists both TCP and UDP, but the exact transport and behavior can depend on the VVR version and configuration; this is not a general-purpose, text-based protocol.

Security Information

exposure of :4145

risk score

5/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

network services averages 2.6 across 1,497 ports — this one sits 2.4 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 · udp

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

security overview

VVR control traffic can affect the operation of replicated storage, so allow it only between authorized replication peers and do not expose it to the public internet. Traffic is not encrypted by default. Internet-wide scan data has not shown this port open, and there is no basis here to claim a specific known vulnerability.

Record

iana registry entry

port: :4145
service: Veritas Volume Replicator Control
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 5/10caution
category: Network Services System
usage: This port is associated with the control channel for Veritas Volume Replicator (VVR), part of Veritas storage products. Engineers are most likely to encounter it on private networks between replication peers, rather than on an internet-facing host.
lookups: 0rank 993
added: 2026-10-03
updated: 2026-10-03
references: IANA service name registry — port 4145

Something wrong?

This record is maintained by the engineers who use port 4145. 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 2026-10-03.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :4145Veritas Volume Replicator Control

Technical Details

Security Information

Related Ports

Port 4145Veritas Volume Replicator Control