CyberHunter
// Voice & chat

Port 8417: eSpeech RTP Protocol

Port 8417 is assigned by IANA to espeech-rtp (eSpeech RTP Protocol).

8417

How espeech-rtp works

Voice & chat
callercalleeespeech-rtp callercalleeespeech-rtp

Port 8417 sets up the call (who calls whom), then the voice travels as a stream of audio packets.

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
Voice & chat
01 Security

Is port 8417 dangerous?

We have no specific security note for port 8417. Its risk depends on the program actually listening on it. General advice for voice & chat services:

  • Use strong credentials and TLS for signalling.
  • Rate-limit registrations to stop extension scanning and toll fraud.
  • Alert on unexpected chat protocols leaving servers (possible command and control).
02 Registry

IANA registry entries for port 8417

ServicePortTransportDescriptionReferenceUpdated
espeech-rtp 8417 TCP, UDP eSpeech RTP Protocol - 2003-04

// source: IANA service name and port number registry

03 Check it

Which program uses port 8417, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8417'      # process listening on 8417
sudo lsof -nP -i :8417

macOS

sudo lsof -nP -i :8417

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8417 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8417
netstat -ano | findstr :8417

From another machine

nmap -p 8417 -sV <host>
sudo nmap -sU -p 8417 <host>
nc -zv <host> 8417

Block it in the firewall

sudo ufw deny 8417/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8417" -Direction Inbound -LocalPort 8417 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8417 used for?

Port 8417 is assigned by IANA to espeech-rtp (eSpeech RTP Protocol).

Is port 8417 TCP or UDP?

Port 8417 is registered for TCP and UDP.

Is it safe to open port 8417?

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. Use strong credentials and TLS for signalling.

How do I check if port 8417 is open?

On Linux run "ss -ltnup 'sport = :8417'", on macOS "lsof -nP -i :8417", and on Windows "netstat -ano | findstr :8417" to see the local process. From another machine, "nmap -p 8417 <host>" shows whether it is reachable.

05 Related