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

Loading ...

5. Firewall, Failover and OOB Access

The DHCP server also supports pre-assigning IP addresses to be allocated only to speciﬁc MAC addresses and reserving IP

addresses to be used by connected hosts with ﬁxed IP addresses.

Once applied, devices on the internal network will be able to access resources on the external network.

5.8.3 Port / Protocol Forwarding

When using IP masquerading, devices on the external network cannot initiate connections to devices on the internal network.

To work around this, port forwarding can be set up to allow external users to connect to a speciﬁc port or range of ports on

the external interface of the console server/cellular router. The console server/cellular router redirects the data to a speciﬁed

internal address and port range.

To set up a port/protocol forward:

• Navigate to the System: Firewall page and click on the Port Forwarding tab.

• Click Add New Port Forward.

• Fill in the following ﬁelds:

Name: Name for the port forward. This should describe the target and the service that the

port forward is used to access.

Input Interface: This allows the user to only forward the port from a speciﬁc interface. In most

cases, this should be left as “Any”.

Source Address/Address Range: This allows the user to restrict access to a port forward to a speciﬁc source IP

address or IP address range of the data. This may be left blank. IP address ranges

use the format ip/netmask (where netmask is in bits 1-32).

Destination Address/Address Range: The destination IP address/address range to match. This may be left blank. IP

address ranges use the format ip/netmask (where netmask is in bits 1-32).

Input Port Range: The range of ports to forward to the destination IP. These will be the port(s)

speciﬁed when accessing the port forward. These ports do not need to be the same

as the output port range.

Protocol: The protocol of the data being forwarded. The options are TCP or UDP, TCP and

UDP, ICMP, ESP, GRE and Any.

Output Address: The target of the port forward. This is an address on the internal network where

packets sent to the Input Interface on the input port range are sent.

Output Port Range: The port or range of ports that the packets will be redirected to on the Output

Address. Ranges use the format start-ﬁnish. This option is only valid for TCP and

UDP protocols.

Loading ...

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