Firewall port summary

This section lists a summary of the port numbers that are used for various devices for communication purposes. Ports that you can customize according to your requirements are listed in bold and italics, for example, 1433 and 1521. For more information, see other references in the Security section. 


The following table lists the ports that might be used in scanning.

Port
Number

Port assignment

Direction

Use

Reference

4

Closed Port

Outbound

Base Device Detection







Network ports used for discovery communications 

21

FTP

Outbound

Base Device Detection

22

SSH

Outbound

UNIX Discovery

23

telnet

Outbound

UNIX Discovery

80

HTTP

Outbound

Base Device Detection

135

DCE RPC Endpoint Manager

Outbound

Windows Discovery

139

Netbios Session Service

Outbound

Windows Discovery

161

SNMP

Outbound

SNMP Discovery

443

HTTPS

Outbound

vCenter discovery
BMC Discovery Outpost

445

Microsoft Directory Services SMB

Outbound

Windows Discovery

513

rlogin

Outbound

UNIX Discovery

902

vSphere API

Outbound

VMware ESX/ESXi Discovery

Network ports used for discovery communications 

1433

MS SQL

Outbound

MS SQL Extended Discovery

Network ports used for discovery communications 

1521

Oracle SQL

Outbound

Oracle SQL Extended Discovery


Network ports used for discovery communications

3306

MySQL SQL

Outbound

MySQL SQL Extended Discovery

3940

Discovery for z/OS Agent

Outbound

Mainframe Discovery

Network ports used for discovery communications 

4100

Sybase SQL

Outbound

Sybase ASE SQL Extended Discovery

Network ports used for discovery communications 

5985

HTTP

OutboundPowerShell HTTP




Network ports used for discovery communications

5986

HTTPS


Outbound

PowerShell HTTPS

5988

HTTP

Outbound

WBEM Discovery

5989

HTTPS

Outbound

WBEM Discovery

49152-65535

DCOM

Outbound

Windows Discovery

Network ports used for discovery communications 


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