Open and Closed UDP and TCP Ports

The following protocols are enabled by default in ICX devices:

  • SSH
  • HTTPS
  • SNMP

Telnet and HTTP are disabled by default.

The following table associates UDP/TCP port numbers with these protocols. The associated UDP/TCP port is open when the protocol is enabled. When the protocol is disabled, the port is closed.

Default Ports by Protocol

Protocol / Function UDP / TCP Port Number Default Setting
HTTP 80 Disabled
HTTPS 443 Enabled
SNMP 161 Enabled
SSH 22 Enabled
Telnet 23 Disabled
Web Services 8081 Enabled
Parent topic: Configuration Fundamentals