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2.1.3 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
If all the program features are in use, the following network ports need to be open:
Protocol
Port
Description
TCP
2224 (ERAS listening)
Communication between the agent
einstaller.exe
and
ERAS during remote install
TCP
2846 (ERAS listening)
ERAS replication.
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 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 and 2846 can be modified in the
Ports
section on the
Advanced
tab.
The predefined ports 2222, 2223, 2224 and 2846 can also be modified during the advanced install mode (ERAS).
