NX100 Pre-installation Manual
Planning control/monitor connections
Issue 3.2 2017-03-31
Page 8-13
Web based control
An Ethernet port is available on the SBC’s motherboard (A1U1) on the back of the control cabinet’s
front door. This port allows a user with proper authentication to remotely control and interrogate the
NX100’s operational status. Most functionality available on the front panel AUI is available remotely,
provided the user has been granted proper authorization (refer to the NX100
Operations and
Maintenance Manual
for details on setting user permissions). Nautel recommends you use shielded
Cat5 cable or better to make this connection.
Remote Access
The only access to the AUI is through the
LAN
connector on the control/interface PWB (A4).
For security purposes, Nautel recommends you place your transmitter behind a router acting as a
firewall. To allow remote AUI access to a transmitter behind a firewall, the firewall must allow TCP
traffic through the following ports:
•
TCP port 80: required to allow the web browser operating on the remote computer to access
the web server operating on the transmitter.
•
TCP port 3501: used for regular AUI-to-transmitter communication. Also used to perform a
security check to allow the remote web browser to access AUI content from the transmitter’s
web server
.
•
TCP ports 161 and 162: Used for SNMP Agents and Traps, respectively.
For security purposes, Nautel recommends you block the following port:
•
TCP port 22: block during normal operation; when required, may be used to allow Secure
Shell (SSH) programs such as PuTTY, etc. to access the transmitter.
Once your transmitter is isolated behind a firewall, there are a variety of standard network
management techniques that can be used to establish a connection, including routing tables and a
virtual private network (VPN).
Detailed information about network management is beyond the scope of this manual. Selecting a
specific technique may depend on your existing network configuration. Nautel recommends that the
planning, implementation and ongoing support of a network that includes a transmitter be performed
by a team that includes at least one member with suitable knowledge of network management.
NOTE
: If you have more than one transmitter on the same LAN, you will need to use port forwarding
to allow access to individual transmitters on the network.
Summary of Contents for NX100
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