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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).
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TCP
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2221 (ERAS listening)
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Default port used by the Mirror feature integrated in ERAS (HTTP
version)
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TCP
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2222 (ERAS listening)
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Communication between clients and ERAS
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TCP
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2223 (ERAS listening)
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Communication between ERAC and ERAS
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If all the program features are in use, the following network
ports need to be open:
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TCP
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2224 (ERAS listening)
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Communication between the agent einstaller.exe and ERAS during remote install
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TCP
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2846 (ERAS listening)
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ERAS replication.
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TCP
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139 (target port from the point of view of ERAS)
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Copying of the agent einstaller.exe
from ERAS to a client using the share admin$
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UDP
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137 (target port from the point of view of ERAS)
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Name resolving during remote install.
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UDP
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138 (target port from the point of view of ERAS)
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Browsing during remote install
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TCP
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445 (target port from the point of view of ERAS)
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Direct access to shared resources using TCP/IP during remote
install (an alternative to TCP 139)
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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).
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