6122 Backup Express Web Server - User Port

6122 is a User Port. Transport Protocol TCP UDP , 6122 Service Name bex-webadmin, Service Name Description: Backup Express Web Server.

Port	Protocol	Service Name	Description	Source
6122	TCP UDP	bex-webadmin	Backup Express Web Server	IANA
6122	TCP UDP	bex-webadmin	Backup Express Web Server	bekkoame

Port	Service Name	Description
1265	dssiapi	DSSIAPI
1269	watilapp	WATiLaPP
1334	writesrv	writesrv
2513	citrixadmin	Citrix ADMIN
2555	compaq-wcp	Compaq WCP
2725	msolap-ptp2	MSOLAP PTP2
3580	nati-svrloc	NATI-ServiceLocator
5783	3par-mgmt-ssl	3PAR Management Service with SSL
5934		Unassigned
6447		Unassigned

A port is an endpoint of communication in an operating system. While the term is also used for hardware devices, in software it is a logical construct that identifies a specific process or a type of service.

Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535);

The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the "well-known port". To the extent possible, these same port assignments are used with the UDP [RFC768]. The range for well-known ports managed by the IANA is 0-1023.
DYNAMIC AND/OR PRIVATE PORTS Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535