Should I open any ports in my firewall for UVexplorer network discovery?

You can open firewall ports for UVexplorer discovery as an alternative to running the UVx agent in that network. We do not recommend this approach, but it may be necessary in some situations.

The discovery process uses the following TCP and UDP ports:

  • Ping (ICMP, no ports used)
  • SNMP (UDP, port 161)
  • SSH (TCP, port 22)
  • Telnet (TCP, port 23)
  • WMI/PowerShell (TCP, port 135)

HTTP and VMware use the ports that you have configured on those platforms.


If you have devices outside the firewall, we recommend that you install a remote UVx agent to discover that part of the network. The agent sends the results back to the internal server, so you do not need to open these ports.