Cisco Systems OL-4580-01 manual Configuring the Internet Protocol Configuring an IP Route

Chapter 6 Configuring the Internet Protocol

Configuring an IP Route

Use the ip route command to configure an IP route. You can configure a static route, a default static IP route, a blackhole route (where the CSS drops any packets addressed to the route), or a firewall IP route. Each ip route command requires one of the following:

•An IP address and a subnet mask prefix; for example, 192.168.1.0 /24

•An IP address and a subnet mask; for example, 192.168.1.0 255.255.255.0 The syntax for this global configuration command is:

ip route ip_address subnet_mask[blackholeip_address2{distanceoriginated-packets}firewallindex {distance}]

The syntax and options for the command are as follows:

•ip_address - The destination network address. Enter the IP address in dotted-decimal notation (for example, 192.168.11.1).

•subnet_mask - The IP subnet mask. Enter the mask in either:

–CIDR bitcount notation (for example, /24).

–Dotted-decimal notation (for example, 255.255.255.0).

•blackhole - Instructs the CSS to drop any packets addressed to the destination.

•ip_address2 - The next hop address for the route. Enter the IP address in dotted-decimal notation (for example, 192.168.11.1).

•distance - (Optional) The administrative distance. Enter an integer from 1 to 254. A smaller number is preferable. The default value is 1.

•originated-packets- Specifies that the route is used only by packets created using flows or sessions going to and from the CSS (for example, a Telnet session to the CSS). The route is not used by flows or sessions that go through the CSS (for example, between an attached server and a remote client).

Note A ping response and an SNMP responses do not use the originated-packets route. A ping request sent from the CSS uses the originated-packets route. A ping response sent from the CSS does not use the originated-packets route.

	Cisco Content Services Switch Routing and Bridging Configuration Guide
6-4	OL-4580-01