LEGRAND Server Technology PRO3X User Manual page 176

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"Port Forwarding" mode:
In this mode, the DHCP server communicates with the primary device alone and
assigns one IP address to the primary device. All expansion devices share the same
IP address as the primary device.
You must specify a 5XXXX port number (where X is a number) when remotely
accessing any expansion device with the shared IP address. See
(on page 176), Port Number Syntax
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Comparison between cascading modes:
• •
The Bridging mode supports the wired network only, while the Port Forwarding mode supports both
wired and wireless networks.
• •
Both cascading modes support a maximum of 32 devices in a chain.
• •
Both cascading modes support both DHCP and static IP addressing.
• • In the Bridging mode, each cascaded device has a unique IP address.
In the Port Forwarding mode, all cascaded devices share the same IP address(es) as the
primary device.
• •
In the Bridging mode, each cascaded device has only one IP address.
In the Port Forwarding mode, each cascaded device can have multiple IP addresses as long
as the primary device has multiple network interfaces enabled/configured properly.
For example:
• When the primary device has two Ethernet ports (ETH1/ETH2), you can enable ETH1, ETH2 and •
WIRELESS interfaces so that the Port-Forwarding chain has two wired IP addresses and one
wireless IP address.
Port Number Syntax
In the Port Forwarding mode, all devices in the cascading chain share the same IP address(es). To access
any cascaded device, you must assign an appropriate port number to it.
• •
Primary device: The port number is either 5NNXX or the standard TCP/UDP port.
• •
Expansion device: The port number is 5NNXX.
▶
5NNXX port number syntax:
• • NN is a two-digit number representing the network protocol as shown below:
176
(on page ).
Port Number Syntax