Reference Guide for the Model RP114 Web Safe Router
1-4 Introduction
Autosensing 10/100 Ethernet
Withits internal, 4-port 10/100 switch, the Model RP114 router canconnect to either a 10 Mbps
standardEthernet network or a 100 Mbps Fast Ethernet network. The local LAN interface is
autosensingand is capable of full-duplex or half-duplex operation.
TheModel RP114 router incorporates Auto UplinkTM technology. Each LOCAL Ethernetport will
automaticallysense whether the Ethernet cable plugged into the port should have a 'normal'
connection(e.g. connecting to a PC) or an 'uplink' connection (e.g. connecting to a router,switch,
or hub). Thatport will then configure itself to the correct configuration. This feature also
eliminates the need to worry about crossover cables, as Auto U plinkTM will accommodateeither
type ofcable to make the right connection.
TCP/IP
The Model RP114router supports the Transmission Control Protocol/Internet Protocol (TCP/IP)
and RoutingInformation Protocol (RIP).
For furtherinformation about TCP/IP, refer toAppendix B, “Network and Routing Basics.”
• IP AddressMasquerading by Dynamic NAT+
TheModel RP114 router allows several networked PCs to share an Internet account usingonly
a singleIP address, which may be statically or dynamically assigned by your Internet service
provider(ISP). This technique, an extension of Network Address Translation (NAT),is also
known as IP address masqueradingand allows the use of an inexpensive single-user ISP
account.
• AutomaticConfiguration of Attached PCs by DHCP
The Model RP114router dynamically assigns network configuration information, including
IP,gateway, and domain name server (DNS) addresses, to attachedPCs on the LAN using the
Dynamic Host Configuration Protocol (DHC P). This feature greatly simplifies configurati on
of LAN-attached PCs.
• DNS Proxy
When DHCP is enabled and no DNS addressesare specified, the router provides its own
addressas a DNS server to the attachedPCs. The router obtains actual DNS addresses from
the ISP during connectionsetup and forwards DNS requests from the LAN.
• PPP over Ethernet (PPPoE)
PPP over Ethernetis a protocolfor connecting remote hosts to the Internet over an always-on
connectionby simulating a dial-up connection.