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Difficulty: EasyIPv4 Static Routing

A network administrator needs to manually configure a floating static route on a Cisco IOS router to serve as a backup path. Arrange the required command components in the correct sequential order from left to right as typed in the CLI.

  1. 1The command prefix: `ip route`
  2. 2Destination prefix: `192.168.20.0`
  3. 3Subnet mask: `255.255.255.0`
  4. 4Next-hop address or exit interface: `10.1.1.2`
  5. 5Administrative distance: `130`

Answer

The correct sequence for configuring a floating IPv4 static route in Cisco IOS is: `ip route` keyword, destination network address, subnet mask, next-hop IPv4 address (or exit interface), and administrative distance.
The standard Cisco IOS syntax for configuring an IPv4 static route is `ip route <destination-prefix> <subnet-mask> {ip-address | exit-interface} [distance]`. Placing `ip route` first, followed by the destination network prefix, subnet mask, next-hop IP address, and finally the administrative distance creates a valid floating static route.

Step-by-Step Solution

1
Identify the global configuration command mode keyword
Start with `ip route`.
Cisco IOS requires the keyword `ip route` to initiate an IPv4 static route entry.
2
Specify target destination network parameters
Provide the destination network IP (`192.168.20.0`) followed by its subnet mask (`255.255.255.0`).
The router must know which destination address block this route applies to.
3
Define forwarding path
Specify the next-hop IP address (`10.1.1.2`) or local exit interface.
The router requires explicit instructions on where to send matching packets.
4
Configure administrative distance for backup behavior
Append an administrative distance value greater than the primary protocol's AD (e.g., `130`).
Setting an AD higher than the primary route (such as OSPF AD 110) ensures the static route remains floating until the primary fails.

Key Concept

Cisco IOS IPv4 Static Route Command Syntax and Floating Route Configuration
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Topics

IPv4 Static Routing

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