Lecture 7.Routing Concept. Static Routing.pdf Flashcards
(21 cards)
What is routing?
A: Routing is the process a router uses to find the best path to send packets to a destination device.
What are the two types of route configuration?
A: Manual (Static Routing) and Automatic (Dynamic Routing).
What is static routing?
A: Static routing is when the network administrator manually configures the path to the destination on the router.
What is a routing table?
A: A routing table is a data table stored in a router that lists the routes to particular network destinations.
How does a router use a routing table?
A: It checks the destination IP address of a packet against the table to decide where to forward it.
What happens if the destination IP address is not in the routing table?
A: The router drops the packet.
What can you learn from a routing table?
A: The topology of the network.
What is a directly connected static route?
A: A route that uses the exit interface of the router to reach the destination network.
How do you configure a direct static route?
R1(config)#ip route 192.168.1.0 255.255.255.0 g0/0
What does 192.168.1.0 255.255.255.0 mean?
It is the destination network address and its subnet mask.
Why must you configure static routes on both routers?
.
A: So traffic can be routed in both directions
What is recursive static routing?
A: A method where the next-hop IP address is used instead of the exit interface.
How do you configure a recursive static route?
R1(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
What is a summary route?
A: A route that summarizes multiple specific routes into a single one.
How do you configure summary routing?
Steps:
- Write two network addresses.
- Convert the last different part to binary.
- Keep similar binary bits; change others to 0s.
- The subnet mask is based on the number of similar bits.
- The summarized IP address uses the common part.
What is the default route or route of last resort?
A: A static route used when no other specific route is found in the table.
How do you configure a default static route?
R1(config)#ip route 0.0.0.0 0.0.0.0 g0/0
What is floating static routing?
A: A backup static route with a higher administrative distance than the primary route.
What is the purpose of floating static routing?
A: It acts as a backup and is only used if the primary route fails.
What is a metric in routing?
A: A value that defines the reliability or cost of a path within a routing protocol.
What is administrative distance?
A: A value that defines the reliability of the route between different routing protocols (lower is better).
