Tripp Lite B093-004-2E4U-V Owner's Manual

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4. Serial Port, Host, Device and User Conﬁguration

If you wish to allow all users operating from within a speciﬁc range of IP addresses (any of the 30 addresses from

204.15.5.129 to 204.15.5.158) to be permitted connection to the assigned port:

Host /Subnet Address 204.15.5.128

Subnet Mask 255.255.255.224

• Click Apply.

Note: The above trusted networks will limit access by Users and Administrators to the console serial ports. However, they do not restrict

access by the Administrator to the console server itself or to attached hosts. To change the default settings for this access, you will to need

to edit the iptables rules as described in section 14. Conﬁguration from the Command Line.

4.6 Serial Port Cascading

Cascaded Ports enable you to cluster distributed console servers so a large number of serial ports (up to 1000) can be

conﬁgured and accessed through one IP address and managed through a single management console. The Primary console

server controls other console servers as Secondary units and all the serial ports on the Secondary units appear as if they are

part of the Primary.

Tripp Lite’s clustering connects each Secondary unit to the Primary unit via SSH connection. This is done using public key

authentication so the Primary unit can access each Secondary unit using the SSH key pair (rather than using passwords). This

ensures secure authenticated communications between Primary and Secondary units, enabling the Secondary units to be

distributed locally on a LAN or remotely.

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Tripp Lite B093-004-2E4U-V 4-Port Console Server with 4G LTE Cellular Gateway, Dual GbE NIC, 4Gb Flash and Dual SIM