Port Requirements

The following ports must also be opened for communication with the SolarWinds Observability SaaS collectors to report collected data. For on-prem devices, see in SolarWinds Platform Self-Hosted requirements for additional port requirements.

Default port	Protocol	Direction	Description
161	UDP, TCP	Outbound	Port used by the Network Collector for sending and receiving SNMP data from network devices.
443	HTTPS	Outbound	Port used for communication with cloud endpoints and the SolarWinds APM collector. See also Endpoints and Public IP addresses used by SolarWinds Observability SaaS per data center.
443	TCP	Inbound	Optional: Port used by the Network Collector Web Console. Required only for remote access to the website.
1433	TCP	Outbound	Optional: Port used for communication between the Network Collector and the SQL Server. Required only if the SQL server is deployed on a stand-alone machine, such as in High Availability scenarios. See Configure deployed Network Collector for High Availability installation.
2055	UDP	Inbound	Port for receiving flows on the Network Collector. See NetFlow port requirements.
6514	TCP, HTTPS, TLS	Outbound	Port used to send logs via syslog or HTTPS.
17777, 17778	TCP	Inbound	Special case: If the Network Collector and SolarWinds Observability Agent are installed on different servers, inbound rules for these ports are needed.