Ip Setup - Netopia R6100 Reference Manual

IP Setup 10-3

The Netopia R6000 Series ADSL Router supports multiple IP subnets on the Ethernet interface. You may
want to configure multiple IP subnets to service more hosts than are possible with your primary subnet. It
is not always possible to obtain a larger subnet from your ISP. For example, if you already have a full Class
C subnet, your only option is multiple Class C subnets, since it is virtually impossible to justify a Class A or
Class B assignment. This assumes that you are not using NAT.
If you are using NAT, you can use the reserved Class A or Class B subnet.
Select Default IP Gateway and enter the IP address for a default gateway. This can be the address of any
major router accessible to the Netopia R6000 Series.
A default gateway should be able to successfully route packets when the Netopia R6000 Series cannot
recognize the intended recipient's IP address. A typical example of a default gateway is the ISP's router.
Select Primary Domain Name Server and enter the IP address for a domain name server. The domain
name server matches the alphabetic addresses favored by people (for example, robin.hood.com) to the IP
addresses actually used by IP routers (for example, 163.7.8.202).
If a secondary DNS server is available, select Secondary Domain Name Server and enter its IP address.
The secondary DNS server is used by the Netopia R6000 Series when the primary DNS server is
inaccessible. Entering a secondary DNS is useful but not necessary.
Select Domain Name and enter your network's domain name (for example, netopia.com). Netopia strongly
recommends that you enter a domain name.
Routing Information Protocol (RIP) is needed if there are IP routers on other segments of your Ethernet
network that the Netopia R6000 Series needs to recognize. If this is the case select Receive RIP and
select v1, v2, or Both from the pop-up menu. With Receive RIP set to v1, the Netopia R6000 Series's
Ethernet port will accept routing information provided by RIP packets from other routers that use the same
subnet mask. Set to v2, the Netopia R6000 Series will accept routing information provided by RIP packets
from other routers that use different subnet masks. Set to Both, the Netopia R6000 Series will accept
information from either RIP v1 or v2 routers.
If you want the Netopia R6000 Series to advertise its routing table to other routers via RIP, select Transmit
RIP and select v1, v2 (broadcast), or v2 (multicast) from the pop-up menu. With Transmit RIP v1 selected,
the Netopia R6000 Series will generate RIP packets only to other RIP v1 routers. With Transmit RIP v2
(broadcast) selected, the Netopia R6000 Series will generate RIP packets to all other hosts on the
network. With Transmit RIP v2 (multicast) selected, the Netopia R6000 Series will generate RIP packets
only to other routers capable of recognizing RIP v2 packets.
To attach a filter set to the Ethernet hub interface, select LAN (EN Hub) Filter Set and from the pop-up
menu, select the filter set you want to associate with the LAN interface. Press Return.
The included filter sets, Basic Firewall or NetBIOS Filter, or any customized filter set you create, can be
associated with the Ethernet hub, as well as the WAN interface, as shown below: