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CCNA ICND 1 Study Guide
1. I grabbed this EIGRP route from a router a few minutes ago -- tell me what those two numbers in the brackets represent.
R1#show ip route eigrp
2.0.0.0/32 is subnetted, 1 subnets
D 2.2.2.2 [90/2297856] via 172.12.123.2, 00:00:05, Serial0
2.0.0.0/32 is subnetted, 1 subnets
D 2.2.2.2 [90/2297856] via 172.12.123.2, 00:00:05, Serial0
2. Speaking of EIGRP, which of the three EIGRP tables contain the Successors?
3. Which of the following best describes a default static route?
A. It's used before any other route in the table, hence the name "default".
B. It's used only if no other match exists in the routing table.
C. Used if the dynamic routing protocol used to discover the route is not running on that router.
D. Generally created with an AD higher than that of the primary path, so it will not be used unless that primary path leaves the table.
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Let's get to those answers!
1. The first number in the brackets is the Administrative Distance (AD), which is 90 for an EIGRP internal route. The second number is the route's metric.
2. The Successor routes are in both the EIGRP Route and Topology tables. You won't find them in the third table, the Neighbor table.
3. "B". A default static route is used only if there's no other possible match in the routing table.
I'll see you Friday with a new video!
Chris B.
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