Maretron INTERNET PROTOCOL GATEWAY IPG100 - Manual (Page 10)

IPG100 User’s Manual
Page 6 Revision 1.2
x,
10.x.
via
network from an N2KV
uter to allow
f the
with your router for details.
s Translation)
d to
rwar
2KV
e
If you request a Static IP Address from your ISP when you set up your Internet connection, the
’t make this request, your ISP will assign
r lose your Internet connection, your Dynamic IP
ddress will be released and may be reassigned to someone else.
In the early days of the Internet, each computer connected to the Internet had its own IP
address. With the explosive growth of the Internet, the number of distinct IP addresses is
starting to run out. It is no longer practical for an Internet Service Provider (ISP) to provide its
customers with individual IP addresses for each component the customer wishes to connect to
the Internet. Rather, the ISP normally assigns each customer a single IP address, and a
router implementing Network Address Translation (NAT) is connected to the Internet
connection (sometimes referred to as the Wide Area Network, or WAN, connection) on one
side, and to the Local Area Network, or LAN, on the other side. Each computer on the LAN
side of the connection will be assigned its own IP address, typically in the ranges 192.168.x.
x.x, and 172.16.x.x through 172.31.x.x, where x can be any number in the range 0-255.
The WAN connection will be assigned a single IP address by the ISP.
Generally, network address translation is performed by a router that is connected to the
Internet via a Cable or DSL connection on the WAN side, and to the local area network (LAN)
Ethernet or Wi-Fi co
®
he local area nnections. In order to access an N2KServer on t
iew
®
outside of the LAN. You must configure the ro
incoming connections on port 6544 and to forward these connections to the IP address o
N2KServer
®
computer. Consult the documentation that came
1.7.4 PAT (Port Addres
If you wish to use N2KView
®
to view data from an N2KServer
®
on a WAN through an Internet
connection and your Internet Service Provider does not allow communication on port 6544,
please read this section. If your N2KServer
®
and N2KView
®
computers are on the same LAN,
or your ISP allows communication over port 6544, you may skip this section.
N2KServer
®
requires a connection to be made on port 6544. Routers that support Port
Address Translation can be set up to accept incoming connections on a different port an
d these connections to port 6544 on the IP address of the N2KServer
®
computer. This
iew must then be set up to request a connection to the WAN IP Address of the router
fo
change in the port address is known as the ability to do Port Address Translation as well as
Network Address Translation. Not all routers have this ability; please consult the
documentation that came with your router for details.
®
N
and the new port number.
1.7.5 Static and Dynamic IP Addressing
If you wish to use N2KView
®
to view data from an N2KServer
®
on a WAN through an Internet
connection, please read this section. If your N2KServer
®
and N2KView
®
computers are on th
same LAN, you may skip this section.
WAN IP address will always be the same. If you didn
you a Dynamic IP Address, which may actually change from time to time. In this way, the ISP
only needs to have enough addresses to cover its customers who are connected to the
Internet at any given time. If you stop o
a