Troubleshooting Client Addressing in the IPNetRouter
Do not enter client IP addresses in the IPNetRouter interface.
You will have to enter that information on the individual LAN
clients on your subnet. The subnet is established by the creation
of an IP router and the application of a mask. The following
Interface Window shows what one common mistake looks like.
The highlighted interfaces in the example should be removed.
Why? Only the gateway Mac will be able to use any IP address
in the Interface window as an IP address for itself. Each machine
on your LAN should have a unique IP address assigned to it in
its own network configuration software. You cannot use IPNetRouter's
Interfaces window to do this directly. The LAN IP address in
the Interfaces window should be used as the router address by
other LAN computers.
In the above example, the router address for all LAN clients
is 192.168.0.1. Other LAN clients must have specific IP address
other then the router address in the same sublan, not higher
than 192.168.0.254. A typical TCP/IP configuration of a LAN
client for the above example would look like this:
A typical Mac clients TCP/IP control panel configuration.
Your subnet range may vary depending on which network number
you are using for your private LAN. The standard ranges for
private LANs are described in RFC-1918.
Each LAN client on your network must have a different IP address
on that subnet. The example above also assumes that DNSForwarding
is turned on in IPNetRouter's Gateway Options window--this
permits you to use the gateway router IP address as the name
server IP address in LAN clients. Use the name server address
assigned to you by your ISP in the name server field when
not using this option. See the IPNetRouter
guide for more information on setting up your particular
Configure each LAN client's own TCP/IP (or Network) control
panel with its own, unique IP address. Use the address entered
in IPNetRouter's Interfaces window as the router address. Refer
to IPNetRouter's online guide. Client configuration is pretty
simple once you get the hang of it.
The subnet of the client is determined by the net mask, which
in this case is 255.255.255.0. This particular mask specifies
the 192.168.0 subnet with 254 local clients, one of which is
the router and the other the LAN clients. Unless you need more
than 254 clients on your network, we recommend you use a mask
of 255.255.255.0 for your private LAN.
Use the Subnet Calculator tool in IPNetRouter or IPNetMonitor
to determine the subnet and client ranges for other address and
routing needs. The "Net Masks
and Using the Subnet Calculator" web page contains more
information about subnet masks and IP address ranges.