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Table Of Contents
Routing
The Routing window displays the configured static routes and Routing Internet Protocol, (RIP), Open Shortest Path First (OSPF), and Extended Interior Gateway Routing Protocol (EIGRP) configured routes. From this window, you can review the routes, add new routes, edit existing routes, and delete routes.
Note Static and dynamic routes configured for GRE over IPSec tunnels will appear in this window. If you delete a routing entry that is used for GRE over IPSec tunneling in this window, that route will no longer be available to the tunnel.
Static Routing
Destination Network
This is the network that the static route provides a path to.
Forwarding
This is the interface or IP address through which packets must be sent to reach the destination network.
Optional
This area shows whether a distance metric has been entered, and whether or not the route has been designated as a permanent route.
What Do You Want To Do?
Note•If SDM detects a previously configured static route entry that has the next hop interface configured as the "Null" interface, then the static route entry will be read-only.
•If SDM detects a previously configured static route entry with "tag" or "name" options, that entry will be read-only.
•If you are configuring a Cisco 7000 router, and the interface used for a next hop is unsupported, that route will be marked as read only.
•Read-only entries cannot be edited or deleted using SDM.
Dynamic Routing
This portion of the window allows you to configure RIP, OSPF, and EIGRP dynamic routes.
Item Name
If no dynamic routes have been configured, this column contains the text RIP, OSPF, and EIGRP. When one or more routes have been configured, this column contains the parameter names for the type of routing configured.
Routing Protocol Configuration ParametersRIP
RIP Version, Network, Passive Interface
OSPF
Process ID
EIGRP
Autonomous System Number
Item Value
This column contains the text "Enabled," and configuration values when a routing type has been configured. It contains the text "Disabled" when a routing protocol has not been configured.
What Do You Want To Do?
Add or Edit IP Static Route
Use this window to add or edit a static route.
Destination Network
Enter the destination network address information in these fields.
Prefix
Enter the IP address of the destination network. For more information, refer to Available Interface Configurations.
Prefix Mask
Enter the destination address subnet mask.
Make this the default route
Check this box to make this the default route for this router. A default route forwards all the unknown outbound packets through this route.
Forwarding
Specify how to forward data to the destination network.
Interface
Click Interface if you want to select the interface of the router that forwards the packet to the remote network.
IP Address
Click IP Address if you want to enter the IP Address of the next hop router that receives and forwards the packet to the remote network.
Optional
You can optionally provide a distance metric for this route, and designate it as a permanent route.
Distance Metric for this route
Enter the metric value that has to be entered in the routing table. Valid values are 1 through 255.
Permanent Route
Check this box to make this static route entry a permanent route. Permanent routes are not deleted even if the interface is shut down or the router is unable to communicate with the next router.
Add or Edit an RIP Route
Use this window to add or edit a Routing Internet Protocol (RIP) route.
RIP Version
The values are RIP version 1, RIP version 2, and Default. Select the version supported by the Cisco IOS image that the router is running. When you select version 1, the router sends version 1 RIP packets and can receive version 1 packets. When you select version 2, the router sends version 2 RIP packets and can receive version 2 packets. When you select Default, the router sends version 1 packets, and can receive both version 1 and version 2 RIP packets.
IP Network List
Enter the networks on which you want to enable RIP. Click Add to add a network. Click Delete to delete a network from the list.
Available Interface List
The available interfaces are shown in this list.
Make Interface Passive
Check the box next to the interface if you do not want it to send updates to its neighbor. The interface will still receive routing updates, however.
Add or Edit an OSPF Route
Use this window to add or edit an Open Shortest Path First (OSPF) route.
OSPF Process ID
This field is editable when OSPF is first enabled; it is disabled once OSPF routing has been enabled. The process ID identifies the router's OSPF routing process to other routers.
IP Network List
Enter the networks that you want to create routes to. Click Add to add a network. Click Delete to delete a network from the list.
Network
The address of the destination network for this route. For more information, refer to Available Interface Configurations.
Mask
The subnet mask used on that network.
Area
The OSPF area number for that network. Each router in a particular OSPF area maintains a topological database for that area.
Note If SDM detects previously configured OSPF routing that includes "area" commands, then the IP Network List table will be read-only and cannot be edited.
Available Interface List
The available interfaces are shown in this list.
Make Interface Passive
Check the box next to the interface if you do not want it to send updates to its neighbor. The interface will still receive routing updates, however.
Add
Click Add to provide an IP address, network mask, and area number in the IP address window.
Edit
Click Edit to edit the IP address, network mask, or area number in the IP address window.
Add or Edit EIGRP Route
Use this window to add or delete an Extended IGRP (EIGRP) route.
Autonomous System Number
The autonomous system number is used to identify the router's EIGRP routing process to other routers.
IP Network List
Enter the networks that you want to create routes to. Click Add to add a network. Click Delete to delete a network from the list.
Available Interface List
The available interfaces are shown in this list.
Make Interface Passive
Check the box next to the interface if you do not want it to send updates to its neighbor. The interface will neither send nor receive routing updates.
Caution When you make an interface passive, EIGRP suppresses the exchange of hello packets between routers, resulting in the loss of their neighbor relationship. This not only stops routing updates from being advertised, but also suppresses incoming routing updates.
Add
Click Add to add a destination network IP address to the Network list.
Delete
Select an IP address, and click Delete to remove an IP address from the Network list.
Posted: Fri Oct 7 14:01:11 PDT 2005
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