Autosensing 10/100 Ethernet; Tcp/Ip - NETGEAR RO318 Reference Manual

Reference Guide for the Model RO318 Cable/DSL Security Router

Autosensing 10/100 Ethernet

With its internal, 8-port 10/100 switch, the Model RO318 router can connect to either a 10 Mbps
standard Ethernet network or a 100 Mbps Fast Ethernet network. The local LAN interface is
autosensing and is capable of full-duplex or half-duplex operation. In addition, the LAN interface
ports automatically sense whether a connection is a normal or uplink connection (MDI/MDI-X),
eliminating the need for uplink switches or crossover cables.

TCP/IP

The Model RO318 router supports the Transmission Control Protocol/Internet Protocol (TCP/IP)
and Routing Information Protocol (RIP).
For further information about TCP/IP, refer to
Basics."
• IP Address Masquerading by Dynamic NAT+
The Model RO318 router allows several networked PCs to share an Internet account using
only a single IP 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 masquerading and allows the use of an inexpensive single-user ISP
account.
• Automatic Configuration of Attached PCs by DHCP
The Model RO318 router dynamically assigns network configuration information, including
IP, gateway, and domain name server (DNS) addresses, to attached PCs on the LAN using the
Dynamic Host Configuration Protocol (DHCP). This feature greatly simplifies configuration
of LAN-attached PCs.
• DNS Proxy
When DHCP is enabled and no DNS addresses are specified, the router provides its own
address as a DNS server to the attached PCs. The router obtains actual DNS addresses from
the ISP during connection setup and forwards DNS requests from the LAN.
• PPP over Ethernet (PPPoE)
PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an always-on
connection by simulating a dial-up connection.
1-4
Appendix B, "Networks, Routing, and Firewall
Introduction