Show the n leftmost bits of the following network-addresses/masks that can be used in a forwardi

Step 1: Understand the notation. The notation $X.Y.Z.W / N$ represents an IP address with a subn

Show the n leftmost bits of the following...

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Key Concepts

IP Addressing

IP addressing involves representing IP addresses as 32?bit numbers divided into four octets. This concept is crucial for understanding how network and host portions of an address are defined, particularly when converting the dotted-decimal format into binary to examine individual bits.

CIDR Notation

CIDR (Classless Inter-Domain Routing) notation, expressed as an IP address followed by a slash and a number, specifies how many of the leftmost bits of the address are used for the network prefix. This method replaces the older classful addressing scheme and allows for flexible allocation of IP addresses.

Subnet Mask

A subnet mask is a 32-bit number used to determine which portion of an IP address represents the network and which part represents the host. It typically features a series of consecutive ones followed by zeros, aligning with the CIDR prefix length, and plays a critical role in routing and network segmentation.

Binary Representation

Translating IP addresses and subnet masks to their binary representations is essential for accurately parsing out the n leftmost bits as specified by the CIDR notation. This conversion aids in visualizing the division between the network and host components, a key process for tasks like populating forwarding tables.

Show the $n$ leftmost bits of the following network-addresses/masks that can be used in a forwarding table. a. $170.40 .11 .0 / 24$ b. $110.40 .240 .0 / 22$ c. $70.14 .0 .0 . / 18$

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