All ports
Port15555/TCP
cisco-snatPort
15555
Protocol
TCP
Category
Registered
Service
cisco-snat
What is port 15555?
Port 15555/TCP is a Registered port, registered with IANA for specific applications. It is associated with the cisco-snat service.
Cisco Stateful NAT
Useful commands
nmapnmap -p 15555 -sV example.comnetcatnc -zv example.com 15555curlcurl -v http://example.com:15555/telnettelnet example.com 15555bash(echo > /dev/tcp/example.com/15555) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 15555/tcpDeny
sudo ufw deny 15555/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 15555 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 15555 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=15555/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 15555" dir=in action=allow protocol=TCP localport=15555Security Risks
- Unauthorized access to the service
- Data exposure if the service is unauthenticated
- Outdated versions with vulnerabilities
- Incorrect service configuration
Frequently Asked Questions
What service runs on port 15555/TCP?
Port 15555/TCP is associated with the cisco-snat service. Cisco Stateful NAT
Is it safe to expose port 15555 to the Internet?
It depends on the service and configuration. Port 15555 (cisco-snat) is a Registered port. If you need to expose it, keep the service updated, use strong authentication, and configure a firewall. It's always recommended to restrict access by IP when possible.
How do I check if port 15555 is open?
You can use nmap: `nmap -p 15555 -sV example.com`, netcat: `nc -zv example.com 15555`, or the bash command: `(echo > /dev/tcp/example.com/15555) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 15555 on my firewall?
On Linux with UFW: `sudo ufw allow 15555/tcp` (open) or `sudo ufw deny 15555/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 15555 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 15555" dir=in action=allow protocol=TCP localport=15555`.
What applications and services use port 15555?
Port 15555/TCP is used by the cisco-snat service. Specific uses depend on the software and configuration. Check our related tools section for more information.