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Cisco Content Services Switch Getting Started Guide
OL-6037-01
Chapter 2 Configuring CSS Basics
Configuring an IP Route
Configuring an IP Route
To establish IP connectivity to the CSS, a static IP route is required to connect the
CSS to the next hop router. A static route consists of a destination network address
and mask and the next hop to reach the destination. You can also specify a default
static route (using 0.0.0.0 as the destination network address and a valid next hop
address) to direct frames for which no other destination is listed in the routing
table. Default static routes are useful for forwarding otherwise unrouteable
packets by the CSS.
When you configure a static IP route, the CSS periodically polls the next hop
router with an internal ICMP keepalive service to ensure the router is functioning
properly. If the router fails, the CSS removes any entries from the routing table
that point to the failed router and stops sending traffic to the failed router. When
the router recovers, the CSS:
•
Becomes aware of the router
•
Reenters applicable routes in the routing table
To configure a static IP route, use the
ip route
command and specify one of the
following:
•
An IP address and prefix length; 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 the
ip route
command is:
ip route
ip_address subnet mask
ip_address2
The variables 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 as either:
–
A prefix length in CIDR bit-count notation (for example, /24)
–
An IP address in dotted-decimal notation (for example, 255.255.255.0)
•
ip_address2
- The next hop address for the route. Enter the IP address in
dotted-decimal notation (for example, 192.168.11.1).
