Ports used

The chart below lists the possible network communications used when ERAS is installed. The process EHttpSrv.exe listens on TCP port 2221 and the process era.exe listens on TCP ports 2222, 2223, 2224 and 2846. Other communications occur using native operating system processes (e.g., ”NetBIOS over TCP/IP”).

Protocol

Port

Description

TCP

2221 (ERAS listening)

Default port used by the Mirror feature integrated in ERAS (HTTP version)

TCP

2222 (ERAS listening)

Communication between clients and ERAS

TCP

2223 (ERAS listening)

Communication between ERAC and ERAS

For all program features to function properly, ensure that the following network ports are open:

Protocol

Port

Description

TCP

2224 (ERAS listening)

Communication between the agent einstaller.exe and ERAS during remote install

TCP

2225 (ERAS listening)

Communication between the ESET Dashboard HTTP Server and ERAS

TCP

2846 (ERAS listening)

ERAS replication.

TCP

2226 (ERA Command-line Console)

Connection between ERAS and the Command-line Console

TCP

139 (target port from the point of view of ERAS)

Copying of the agent einstaller.exe from ERAS to a client using the share admin$

UDP

137 (target port from the point of view of ERAS)

“Name resolving” during remote install.

UDP

138 (target port from the point of view of ERAS)

“Browsing” during remote install

TCP

445 (target port from the point of view of ERAS)

Direct access to shared resources using TCP/IP during remote install (an alternative to TCP 139)

The predefined ports 2221, 2222, 2223, 2224, 2225 and 2846 can be changed if they are already in use by other applications.

To change the default ports used by ERA, click Tools > Server Options… To change port 2221, select the Updates tab and change the HTTP server port value. Ports 2222, 2223, 2224, 2225 and 2846 can be modified in the Ports section of the Other Settings tab.

The predefined ports 2222, 2223, 2224 and 2846 can also be modified during advanced install mode (ERAS).