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Chapter 8
Routing

This Chapter explains the Routing features of the LevelOne WBR-1101TX.

Overview

Routing Screen

The routing table is accessed by the Routing link on the Options screen.

Using this Screen

Generally, you will use either RIP (Routing Information Protocol) OR the Static Routing Table, although is it possible to use both methods simultaneously.

Static Routing Table

If RIP is not used, an entry in the routing table is required for each LAN segment on your Network, other than the segment to which this device is attached.

The other Routers must also be configured. See Router Configuration later in this chapter for further details and an example.

 

Figure 41: Routing Screen

Data - Routing Screen

RIP

Enable RIP
Check this to enable the RIP (Routing Information Protocol) feature of the LevelOne WBR-1101TX.
The LevelOne WBR-1101TX supports RIP 1 only.

Static Routing Table

Select Entry
This drop-down list shows all entries in the Routing Table.
  • To view or change an entry, select it, then click the Get Data button.
  • After making any required changes, click the Update button to save your changes.
Destination
IP Address
The network address of the remote LAN segment.
For standard class "C" LANs, the network address is the first 3 fields of this Destination IP Address. The 4th (last) field can be left at 0.
Network Mask
The Network Mask used on the remote LAN segment. For class "C" networks, the standard Network Mask is 255.255.255.0
Gateway
IP Address
The IP Address of the Router on the LAN segment to which this device is attached. (NOT the router on the remote LAN segment.)
Interface
Select the appropriate interface - LAN or WAN from the drop-down list.
Note: The "WAN" interface it only available if NAT (Network Address Translation) has been disabled on the Options screen.
Metric
The number of routers which must be traversed to reach the remote LAN segment. The default value is 1.

Buttons

Clear Form
Clears all data, ready for input of a new entry.
Add
Add a new entry to the Routing table, using the data shown on screen.
The name shown in the drop-down list is ignored.
Delete
Delete the entry selected in the drop-down list, regardless of whether its details are shown on screen.
Update
Update the entry selected in the drop-down list, using the data shown on screen.
List All
List all entries in the Routing table.
Save
Save the RIP setting. This has no effect on the Static Routing Table.
Cancel
Reverse any changes made since the last "submit" operation (i.e. since clicking any other button).

 

Router Configuration

It is essential that all IP packets for devices not on the local LAN be passed to the LevelOne WBR-1101TX, so that they can be forwarded to the Internet. To achieve this, the local LAN must be configured to use the LevelOne WBR-1101TX as the Default Route or Default Gateway.

Local Router

The local router is the Router installed on the same LAN segment as the LevelOne WBR-1101TX. This router requires that the Default Route is the LevelOne WBR-1101TX itself. Typically, routers have a special entry for the Default Route. It should be configured as follows.

Destination IP Address
Normally 0.0.0.0, but check your router documentation.
Network Mask
Normally 0.0.0.0, but check your router documentation.
Gateway IP Address
The IP Address of the LevelOne WBR-1101TX.
Metric
1

 

Other Routers on the Local LAN

Other routers on the local LAN must use the LevelOne WBR-1101TX's Local Router as the Default Route. The entries will be the same as the LevelOne WBR-1101TX's local router, with the exception of the Gateway IP Address.

Static Routing - Example

Figure 42: Routing Example

For the LevelOne WBR-1101TX's Routing Table

For the LAN shown above, with 2 routers and 3 LAN segments, the LevelOne WBR-1101TX requires 2 entries as follows.

Entry 1 (Segment 1)

Destination IP Address
192.168.1.0
Network Mask
255.255.255.0 (Standard Class C)
Gateway IP Address
192.168.0.100 (LevelOne WBR-1101TX's local Router)
Interface
LAN
Metric
1

Entry 2 (Segment 2)

Destination IP Address
192.168.2.0
Network Mask
255.255.255.0 (Standard Class C)
Gateway IP Address
192.168.0.100
Interface
LAN
Metric
2

For Router A's Default Route

Destination IP Address
0.0.0.0
Network Mask
0.0.0.0
Gateway IP Address
192.168.0.1 (LevelOne WBR-1101TX's IP Address)

For Router B's Default Route

Destination IP Address
0.0.0.0
Network Mask
0.0.0.0
Gateway IP Address
192.168.1.80 (LevelOne WBR-1101TX's local router)



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