3 Features
3.1 Network connections
Watson SHDSL router supports various network connections. Besides the physical LAN and WAN
connections, other logical connections, using tunnelling protocols over existing connections, such
as PPP and VPN can be configured.
Every network connection in Watson SHDSL router can be configured as one of three types: WAN,
LAN or DMZ. This provides high flexibility and increased functionality.
For example a network connection can be defined as a DMZ (Demilitarized) network. Although the
network is physically inside Watson SHDSL router, it will function as an unsecured, independent
network, for which Watson merely acts as a router.
3.1.1 Bridging
With the network bridging feature several network connections can be combined together under one
virtual network.
For example, creating one network for LAN Ethernet and WAN Ethernet devices.
3.1.2 Routing
Watson SHDSL router can be setup to use static or dynamic routing. Dynamic routing automatically
adjusts how packets travel on the network, whereas static routing specifies a fixed routing path to
neighboring destinations.
Watson SHDSL router supports two different routing modes. In route mode Watson functions as a
router between two networks. In NAPT mode Watson performs Network Address and Port Transla-
tion. NAPT refers to network address translation involving the mapping of port numbers, allowing
multiple machines to share a single IP address. NAPT should be used if the LAN encompasses
multiple devices, a topology that necessitates port translation in addition to address translation.
3.1.3 Dynamic Host Configuration Protocol (DHCP)
Watson SHDSL router’s WAN connection can be configured to act as a DHCP client. The server
that assigns the router with an IP address, also assigns a subnet mask. that can be overridden if
necessary.
Watson SHDSL router’s Dynamic Host Configuration Protocol (DHCP) server makes it possible to
easily add computers that are configured as DHCP clients to the local network. It provides a mecha-
nism for allocating IP addresses and delivering network configuration parameters to such hosts.
Watson SHDSL router’s default DHCP server is the LAN bridge.
Revision: 2007-05-24
3-1
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