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// Other services

Port 7202: Inter-Channel Termination Protocol (ICTP) for multi-wavelength PON (Passive Optical Network) systems

Port 7202 is assigned by IANA to pon-ictp (Inter-Channel Termination Protocol (ICTP) for multi-wavelength PON (Passive Optical Network) systems).

7202

How pon-ictp works

Other services
client:7202pon-ictpresponse client:7202pon-ictpresponse

The client sends a request to port 7202 and the pon-ictp service answers.

Transport
TCP
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 7202 dangerous?

We have no specific security note for port 7202. 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 7202

ServicePortTransportDescriptionReferenceUpdated
pon-ictp 7202 TCP Inter-Channel Termination Protocol (ICTP) for multi-wavelength PON (Passive Optical Network) systems TR-352, Inter-Channel-Termination protocol (ICTP) is a peer-to-peer protocol with a binary message format that is used by a set of optical line terminal (OLT) channel terminations (CT) comprising a 40-Gigabit-capable next-generation passive optical network (NG-PON2) system to exchange channel profile configuration and status information and to coordinate the operation of tunable optical network units (ONUs) in a multi-wavelength channel environment. 2019-12-16
-7202-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 7202, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7202'      # process listening on 7202
sudo lsof -nP -i :7202

macOS

sudo lsof -nP -i :7202

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7202 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7202
netstat -ano | findstr :7202

From another machine

nmap -p 7202 -sV <host>
nc -zv <host> 7202

Block it in the firewall

sudo ufw deny 7202/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7202" -Direction Inbound -LocalPort 7202 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7202 used for?

Port 7202 is assigned by IANA to pon-ictp (Inter-Channel Termination Protocol (ICTP) for multi-wavelength PON (Passive Optical Network) systems).

Is port 7202 TCP or UDP?

Port 7202 is registered for TCP.

Is it safe to open port 7202?

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 7202 is open?

On Linux run "ss -ltnup 'sport = :7202'", on macOS "lsof -nP -i :7202", and on Windows "netstat -ano | findstr :7202" to see the local process. From another machine, "nmap -p 7202 <host>" shows whether it is reachable.

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