Comtech EF Data Vipersat SLM-5650A, Installation And Operation Manual

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SLM-5650A Satellite Modem
Revision 10
Ethernet Interface Operation 8–3 MN-SLM-5650A
8.1.1.2 Optional NP Interface Module
When the optional NP Interface is installed in the SLM-5650A, the NP Management Security
(available as a FAST Option) may be used to change to an alternative secure network
management mode:
•
When NP-Management Security is Low the modem operates in a normal access mode.
•
When NP-Management Security is High the modem has secure access modes active:
o
The NP Interface changes from HTTP to HTTPS web page access, and the Base
Modem web page and Telnet are disabled. The Base Modem M&C is accessible
with SNMPv3, using the NP’s IP Address on the ‘
J5 Ethernet’ port.
o
When the modem is operating in Router Mode:

A number of Base Modem parameters are available via the NP HTTPS
Interface.

A limited number of status-only NP parameters are typically viewable
over the Base Modem HTTP Interface.
o
When the modem is operating in (Static) Bridge Mode:

NP Management Security cannot be set to High when the NP is in
(Static) Bridge mode.

There is no M&C provided by the NP Interface Module.

The internal Ethernet connection from Base Modem ‘ J5 Ethernet ’ port
and the TRANSEC Module is disabled to the NP module interface.

The NP Interface ports P1 through P4 transparently bridge data traffic.

Ethernet communication between the Base Modem ‘J5 Ethernet’ port
and the NP Interface is disabled, this is independent functionality that is
not changed by the Management Security mode.
o
When the NP is operating in BPM (Bridge Point-to-Multipoint) Mode:

NP Interface Ethernet ports P1 through P4 transparently bridge data
traffic.

The ‘ J5 Ethernet ’ port can be used for Routed IP Traffic and is isolated
from the Bridged traffic network.

M&C of the Base Modem, NP Interface, and TRANSEC Module are only
available using the Base Modem’s ‘
J5 Ethernet ’ port.
Selecting the NP (Static) Bridge Mode or Bridge Point-to-Multipoint Mode
has the affect of isolating the ‘J5 Ethernet’ communication from the Bridged
IP traffic crossing through the modem via the NP Ports 1 through 4. This is
an important point to consider for more secure network operations. See
Figure 8-1.