Use this tab to add, change, or delete routing table entries. A routing table entry consists of the following information:
To use your computer as a router, check the IP Forwarding box on the Routing tab.
The routing table information is saved in your SETUP.CMD file.
The selections on this page are:
If you plan to simultaneously use TCP/IP through a LAN connection and the Internet Connection Kit through a service provider, you must define the net route to your LAN. (A "net" route is one of several route types, the others being "host," and "default.")
In this case, the net route specifies the internet address of the LAN you want to access while simultaneously connected to the Internet. Once you have established a route to your network, you can access all hosts on that network.
To have TCP/IP calculate the net route for you, click the Create Default Net Route for a Given Host push button. (This is a "net" route to be used by default, not to be mistaken for a "default" route.)
Note: To create this net route you must already have a default route configured and added to the Route Type... list box (or routing table) on the Routing tab; this is what enables the Create Default Net Route... push button. The TCP/IP Configuration Notebook uses the default route address to construct a working "net" route for you automatically.
Adding this alternate net route is necessary because the default route you would normally use to connect to other computers on your LAN is ignored by Internet service providers. They use their own default, and only one default route can be active at a time.
To use your computer as an IP router, check the IP Forwarding box.
You can also use the IPGATE command to enable or disable IP forwarding.
At installation time, IP forwarding is disabled (the check box is not checked). This is the default.
The push buttons on this page are:
Request that TCP/IP calculate the route to a network on which a specific host resides. Once a route to a network has been established, you can access all hosts on that network.
Note: To do this you must have a "default" route type configured and added to the Route Type... list box; this is what enables the Create Default Net Route... push button. The TCP/IP Configuration Notebook uses this default route addressing to construct a working net route for you automatically.
When you click this push button, the Create Default Net Route window appears.
The fields on this window are:
Specify the IP address or host name of the computer you want to access. For example, 198.86.40.81 or SUNSITE.UNC.EDU.
Note:
It is recommended you use the IP address, if known. If you specify a host name that cannot be resolved, an error message displays. You will then need to specify the IP address.
Additional push buttons are:
The fields on this window are:
Select a radio button to add the new entry either after or before the current entry in the Route Type... list box on the Routing tab.
Select one of the following route types to define a route:
Specify the internet protocol (IP) address of the destination host, network, or subnet. The IP address must be in 32-bit dotted-decimal notation.
This field is required for all route types except Default. If the route type is Default, this field is not active.
Specify the internet protocol (IP) address of the next hop in the path to the destination. This field is required.
The IP address must be in 32-bit dotted-decimal notation.
Specify a number between 1 and 15, inclusive, to indicate the number of hops to the destination.
A value of 16 or greater indicates that the network cannot be reached. This field is required.
LAN interfaces can use different subnet masks, giving you the capability of adding routes by specifying a subnet mask (variable subnet routes).
Specify a subnet mask when adding a route. If you do not specify a subnet mask, the stack selects one for you, but the result may not be your preference.
Specify the subnet mask in 32-bit dotted-decimal notation.
Additional push buttons are:
The fields you can change from this window are:
Select one of the following route types to define a route:
Specify the internet protocol (IP) address of the destination host, network, or subnet. The IP address must be in 32-bit dotted-decimal notation.
This field is required for all route types except Default. If the route type is Default, this field is not active.
Specify the internet protocol (IP) address of the next hop in the path to the destination. This field is required.
The IP address must be in 32-bit dotted-decimal notation.
Specify a number between 1 and 15, inclusive, to indicate the number of hops to the destination.
A value of 16 or greater indicates that the network cannot be reached. This field is required.
LAN interfaces can use different subnet masks, giving you the capability of adding routes by specifying a subnet mask (variable subnet routes).
Specify a subnet mask when adding a route. If you do not specify a subnet mask, the stack selects one for you, but the result may not be your preference.
Specify the subnet mask in 32-bit dotted-decimal notation.
Additional push buttons are:
How Do I?
For a step-by-step description of key tasks you can do from this page, go to: