Port 1800ANSYS License Manager

ANSYS floating-license manager traffic between engineering software clients and a license server.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 4/10
lookups: 0

also known as ansys-lm, ANSYS license server, ANSYS licensing

Technical Details

what runs on :1800

The service uses an ANSYS license-manager protocol over TCP and is registered for UDP as well. Clients establish license-manager sessions to request, validate, and return entitlements; the protocol and message framing are product- and version-specific rather than a general-purpose application protocol. Port configuration can vary by ANSYS release and license-server deployment, so related ANSYS licensing ports may also appear in the same environment.

Security Information

exposure of :1800

risk score

4/ 10caution

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

system averages 3.0 across 613 ports — this one sits 1.0 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

This service should normally be restricted to trusted client networks and should not be exposed directly to the Internet. License-manager traffic is generally not encrypted by default, and an exposed service may disclose licensing information or be subjected to probing and denial-of-service attempts; enforce network ACLs and use vendor-supported secured access paths where needed.

Record

iana registry entry

port: :1800
service: ANSYS License Manager
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 4/10caution
category: System
usage: ANSYS products use this service to contact a floating-license server and check out or release product licenses. Engineers typically encounter it on an internal license server accessed by simulation workstations, build systems, or compute clusters.
lookups: 0rank 994
added: 2026-09-01
updated: 2026-09-01
references: IANA service name registry — port 1800

Something wrong?

This record is maintained by the engineers who use port 1800. 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 2026-09-01.

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

Related Ports

all 613 in system →

the 8 most looked-up other ports in system — 613 ports carry that label.

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:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
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:9080	WebSphere HTTP Transport (default)	TCP	Web Services	caution	51.6k
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:12489	NSClient Monitoring Agent	TCP	Network Services	caution	30.0k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :1800ANSYS License Manager

Technical Details

Security Information

Related Ports

Port 1800ANSYS License Manager