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The VCMS will now set up secure SSH connections to and from the Managed Console Server and will retrieve its Managed Devices,
user account details and configured alerts.
5.12.3 CALLING HOME TO A GENERIC CENTRAL SSH SERVER
If you are connecting to a generic SSH server (not a VCMS) you may configure Advanced settings.
Enter the SSH Server Port and SSH User to authenticate as.
Enter the details for the SSH port forward(s) to create.
By selecting Listening Server, you may create a Remote port forward from the Server to this unit, or a Local port forward from this
unit to the Server.
Specify a Listening Port to forward from.
Leave this field blank to allocate an unused port.
Enter the Target Server and Target Port that will be the recipient of forwarded connections.
Click Add.
5.13 IP PASSTHROUGH
IP Passthrough is used to make a modem connection (for example, the Black Box’s internal cellular modem) appear like a regular
Ethernet connection to a third-party downstream router, allowing the downstream router to use the Black Box’s modem connection as a
primary or backup WAN interface.
The Black Box provides the modem IP address and DNS details to the downstream device over DHCP and transparently passes network
traffic to and from the modem and router.
While IP Passthrough essentially turns an Black Box into a modem-to-Ethernet half bridge, some specific layer 4 services (HTTP/
HTTPS/SSH) may still be terminated at the Black Box (Service Intercepts). Also, services running on the Black Box can initiate outbound
cellular connections independent of the downstream router.
This allows the console server to continue to be used for out-of-band management and alerting and also be managed via VCMS while in
IP Passthrough mode.
5.13.1 DOWNSTREAM ROUTER SETUP
To use failover connectivity on the downstream router (aka Failover to Cellular or F2C), it must have two or more WAN interfaces.
NOTE: Failover in IP Passthrough context is performed entirely by the downstream router, and the built-in out-of-band failover logic on
the console server itself is not available while in IP Passthrough mode.
Connect an Ethernet WAN interface on the downstream router to the Console Server’s Network Interface or Management LAN port
with an Ethernet cable.
Configure this interface on the downstream router to receive its network settings via DHCP.
If failover is required, configure the downstream router for failover between its primary interface and the Ethernet port connected to
the Console Server.
CHAPTER 5: SERIAL PORT, HOST DEVICE AND USER CONFIG
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