Horizons 1500WR Wireless 4-Port Router
25
ParkerVision
3.5 Wizard Setup: WAN and DNS
The fourth wizard screen allows you to configure WAN IP address assignment, DNS server address
assignment and the WAN MAC address.
3.5.1 WAN IP Address Assignment
Every computer on the Internet must have a unique IP address. If your networks are isolated from the
Internet, for instance, only between your two branch offices, you can assign any IP addresses to the
hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the
following three blocks of IP addresses specifically for private networks.
10.0.0.0
- 10.255.255.255
172.16.0.0
- 172.31.255.255
192.168.0.0 - 192.168.255.255
You can obtain your IP address from the IANA, from an ISP or have it assigned by a private network.
If you belong to a small organization and your Internet access is through an ISP, the ISP can provide
you with the Internet addresses for your local networks. On the other hand, if you are part of a much
larger organization, you should consult your network administrator for the appropriate IP addresses.
Regardless of your particular situation, do not create an arbitrary IP address;
always follow the guidelines above. For more information on address assignment,
please refer to RFC 1597, Address Allocation for Private Internets and RFC 1466,
Guidelines for Management of IP Address Space.
3.5.2 IP Address and Subnet Mask
Similar to the way houses on a street share a common street name, so too do computers on a LAN
share one common network number. Where you obtain your network number depends on your
particular situation. If the ISP or your network administrator assigns you a block of registered IP ad-
dresses, follow their instructions in selecting the IP addresses and the subnet mask.
If the ISP did not explicitly give you an IP network number, then most likely you have a single user
account and the ISP will assign you a dynamic IP address when the connection is established. If this
is the case, it is recommended that you select a network number from 192.168.0.0 to 192.168.255.0
and you must enable the Network Address Translation (NAT) feature of the 1500WR Wireless Router.
The Internet Assigned Number Authority (IANA) reserved this block of addresses specifically for
private use; please do not use any other number unless you are told otherwise. Let’s say you select
192.168.1.0 as the network number; which covers 254 individual addresses, from 192.168.1.1 to
192.168.1.254 (zero and 255 are reserved). In other words, the first three numbers specify the net-
work number while the last number identifies an individual computer on that network.
Once you have decided on the network number, pick an IP address that is easy to remember, for
instance, 192.168.1.1, for your 1500WR Wireless Router, but make sure that no other device on your
network is using that IP address.
The subnet mask specifies the network number portion of an IP address. Your 1500WR Wireless
Router will compute the subnet mask automatically based on the IP address that you entered. You
don’t need to change the subnet mask computed by the 1500WR Wireless Router unless you are
instructed to do otherwise.