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Zorluk: OrtaFloating Static Routes

A router learns the destination network 10.20.30.0/2410.20.30.0/24 dynamically via RIPv2 with a default Administrative Distance of 120120. A network engineer needs to configure a floating static backup route for this network via next-hop IP address 192.168.12.2192.168.12.2. The backup route must only enter the routing table if the primary RIP route fails. Complete the Cisco IOS configuration command to assign an Administrative Distance of 130130 to the floating static route.

Cevap:Router(config)# ip route 10.20.30.0 255.255.255.0 192.168.12.2 【130】

Cevap

130
A floating static route serves as a backup path and must be configured with an Administrative Distance (AD) strictly higher than that of the primary route. Since RIPv2 has a default AD of 120, specifying 130 as the trailing metric in the 'ip route' command ensures that the static route remains out of the routing table until the RIP route fails.

Adım Adım Çözüm

1
Identify the Administrative Distance (AD) of the primary dynamic routing protocol.
RIPv2 has a default Administrative Distance of 120.
Routing decisions prioritize routes with lower Administrative Distance values.
2
Determine the required Administrative Distance for the backup floating static route.
The backup route must have an AD greater than 120 (specifically 130 as requested).
A higher AD keeps the static route inactive (floating) in the routing table as long as the primary route is active.
3
Complete the Cisco IOS command by appending the administrative distance integer at the end.
The trailing argument in 'ip route 10.20.30.0 255.255.255.0 192.168.12.2 130' sets the AD to 130.
In Cisco IOS syntax, an optional integer at the end of the 'ip route' command overrides the default static route AD of 1.

Anahtar Kavram

Floating Static Route Administrative Distance Configuration
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Konular

Floating Static Routes

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