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// Other services

Port 1246: payrouter

Port 1246 is assigned by IANA to payrouter (payrouter).

1246

How payrouter works

Other services
client:1246payrouterresponse client:1246payrouterresponse

The client sends a request to port 1246 and the payrouter 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 1246 dangerous?

We have no specific security note for port 1246. 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 1246

ServicePortTransportDescriptionReferenceUpdated
payrouter 1246 TCP, UDP payrouter - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1246, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1246'      # process listening on 1246
sudo lsof -nP -i :1246

macOS

sudo lsof -nP -i :1246

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1246 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1246
netstat -ano | findstr :1246

From another machine

nmap -p 1246 -sV <host>
sudo nmap -sU -p 1246 <host>
nc -zv <host> 1246

Block it in the firewall

sudo ufw deny 1246/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1246" -Direction Inbound -LocalPort 1246 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1246 used for?

Port 1246 is assigned by IANA to payrouter (payrouter).

Is port 1246 TCP or UDP?

Port 1246 is registered for TCP and UDP.

Is it safe to open port 1246?

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 1246 is open?

On Linux run "ss -ltnup 'sport = :1246'", on macOS "lsof -nP -i :1246", and on Windows "netstat -ano | findstr :1246" to see the local process. From another machine, "nmap -p 1246 <host>" shows whether it is reachable.

05 Related
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