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// Other services

Port 8017: Cisco Cloudsec Dataplane Port Number

Port 8017 is assigned by IANA to cisco-cloudsec (Cisco Cloudsec Dataplane Port Number).

8017

How cisco-cloudsec works

Other services
client:8017cisco-cloudsecresponse client:8017cisco-cloudsecresponse

The client sends a request to port 8017 and the cisco-cloudsec service answers.

Transport
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 8017 dangerous?

We have no specific security note for port 8017. 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 8017

ServicePortTransportDescriptionReferenceUpdated
cisco-cloudsec 8017 UDP Cisco Cloudsec Dataplane Port Number - 2021-03-18
-8017-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8017, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8017'      # process listening on 8017
sudo lsof -nP -i :8017

macOS

sudo lsof -nP -i :8017

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8017 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8017
netstat -ano | findstr :8017

From another machine

nmap -p 8017 -sV <host>
sudo nmap -sU -p 8017 <host>
nc -zv <host> 8017

Block it in the firewall

sudo ufw deny 8017/udp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8017" -Direction Inbound -LocalPort 8017 -Protocol UDP -Action Block  # Windows
04 FAQ
What is port 8017 used for?

Port 8017 is assigned by IANA to cisco-cloudsec (Cisco Cloudsec Dataplane Port Number).

Is port 8017 TCP or UDP?

Port 8017 is registered for UDP.

Is it safe to open port 8017?

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 8017 is open?

On Linux run "ss -ltnup 'sport = :8017'", on macOS "lsof -nP -i :8017", and on Windows "netstat -ano | findstr :8017" to see the local process. From another machine, "nmap -p 8017 <host>" shows whether it is reachable.

05 Related
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