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// Other services

Port 5111: TAEP AS service

Port 5111 is assigned by IANA to taep-as-svc (TAEP AS service).

5111

How taep-as-svc works

Other services
client:5111taep-as-svcresponse client:5111taep-as-svcresponse

The client sends a request to port 5111 and the taep-as-svc service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 5111 dangerous?

We have no specific security note for port 5111. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 5111

ServicePortTransportDescriptionReferenceUpdated
taep-as-svc 5111 TCP, UDP TAEP AS service - 2008-11-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 5111, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5111'      # process listening on 5111
sudo lsof -nP -i :5111

macOS

sudo lsof -nP -i :5111

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5111 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5111
netstat -ano | findstr :5111

From another machine

nmap -p 5111 -sV <host>
sudo nmap -sU -p 5111 <host>
nc -zv <host> 5111

Block it in the firewall

sudo ufw deny 5111/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5111" -Direction Inbound -LocalPort 5111 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5111 used for?

Port 5111 is assigned by IANA to taep-as-svc (TAEP AS service).

Is port 5111 TCP or UDP?

Port 5111 is registered for TCP and UDP.

Is it safe to open port 5111?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 5111 is open?

On Linux run "ss -ltnup 'sport = :5111'", on macOS "lsof -nP -i :5111", and on Windows "netstat -ano | findstr :5111" to see the local process. From another machine, "nmap -p 5111 <host>" shows whether it is reachable.

05 Related
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