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V100 Versatile Multiplexer Technical Manual Version 2.2
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3.4.9.2
The NETWORKS menu
The Ethernet is represented in the user interface with the port name “ENET”. The Ethernet must be
configured with the IP address of the Ethernet port on the local network, and the mask of the local subnet.
Any host stations (PCs), or routers on this local network, must be configured to use the IP address of the
V100 Ethernet as the next-hop gateway for all IP networks that the V100 is providing interconnect
services for. In the example below, the Ethernet port has been configured with the address 192.168.1.1,
and the mask 255.255.255.0 – this mask allows the configuration of 253 other IP stations on the local
network (two addresses are also reserved for broadcast use). The Maximum Transmission Unit (MTU) in
bytes is typically left at the default value of 1514 for the Ethernet port. The UDP Gateway (UDPGw) option
is discussed later in the UDP relay section.
The Bridge field allows bridging or bridging and Spanning Tree Protocol to be enabled on a per-port basis.
If the IP field is configured as OFF and bridging is ON or STP then all traffic is bridged across the V100
network. If the IP field is NUM (for ENET port) or UNN (for tributary channels) and bridging is ON or STP,
then IP traffic is routed across the V100 network and all other traffic is bridged. (See Section 0 for more
information on Spanning Tree Protocol.)
The DBA and Destination fields are not used for the Ethernet port.
The TCP Gateway (TCPGw) option enables the use of the Performance Enhancement Protocol (PEP) and is
either blank (because a Feature Key has not been programmed) or can be set to On or OFF, on both ENET
and the logical channel.