- 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.
Port 654: AODV
Port 654 is assigned by IANA to aodv (AODV).
654
How aodv works
Other servicesThe client sends a request to port 654 and the aodv 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
- Well-known (0-1023)
- Category
- Other services
Is port 654 dangerous?
We have no specific security note for port 654. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 654
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| aodv | 654 | TCP, UDP | AODV | - | - |
// source: IANA service name and port number registry
Which program uses port 654, and is it reachable?
Linux
sudo ss -ltnup 'sport = :654' # process listening on 654
sudo lsof -nP -i :654macOS
sudo lsof -nP -i :654
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 654 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 654 netstat -ano | findstr :654
From another machine
nmap -p 654 -sV <host> sudo nmap -sU -p 654 <host> nc -zv <host> 654
Block it in the firewall
sudo ufw deny 654/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 654" -Direction Inbound -LocalPort 654 -Protocol TCP -Action Block # Windows
What is port 654 used for?
Port 654 is assigned by IANA to aodv (AODV).
Is port 654 TCP or UDP?
Port 654 is registered for TCP and UDP.
Is it safe to open port 654?
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 654 is open?
On Linux run "ss -ltnup 'sport = :654'", on macOS "lsof -nP -i :654", and on Windows "netstat -ano | findstr :654" to see the local process. From another machine, "nmap -p 654 <host>" shows whether it is reachable.
Other other services ports
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp