🔌Intro to LAN

Learn about some of the technologies and designs that power private networks

Intro to LANTryHackMe

https://tryhackme.com/room/introtolan

Room Attributes	Value
Subscription Required	False [Free]
Type	Walkthrough
Difficulty	Info
Tags	Networking, Networking Fundamentals, DHCP, ARP

Task 1 - Introducing LAN Topologies

What does LAN stand for?

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🚩Local Area Network

What is the verb given to the job that Routers perform?

HINT: This is the term given to deciding what route packets should take

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🚩Routing

What device is used to centrally connect multiple devices on the local network and transmit data to the correct location?

HINT: Something smarter than a hub/repeater.

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🚩Switch

What topology is cost-efficient to set up?

HINT: *** Topology

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🚩Bus Topology

What topology is expensive to set up and maintain?

HINT: **** Topology

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🚩Star Topology

Complete the interactive lab attached to this task. What is the flag given at the end?

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🚩THM{TOPOLOGY_FLAWS}

Task 2 - A Primer on Subnetting

What is the technical term for dividing a network up into smaller pieces?

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🚩Subnetting

How many bits are in a subnet mask?

HINT: This can be converted into 4 bytes

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🚩32

What is the range of a section (octet) of a subnet mask?

HINT: Smallest to largest

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🚩0-255

What address is used to identify the start of a network?

HINT: ******* Address

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🚩Network Address

What address is used to identify devices within a network?

HINT: **** Address

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🚩Host Address

What is the name used to identify the device responsible for sending data to another network?

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🚩Default Gateway

Task 3 - The ARP Protocol

What does ARP stand for?

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🚩Address Resolution Protocol

What category of ARP Packet asks a device whether or not it has a specific IP address?

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🚩Request

What address is used as a physical identifier for a device on a network?

HINT: *** Address

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🚩MAC Address

What address is used as a logical identifier for a device on a network?

HINT: ** Address

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🚩IP Address

Task 4 - The DHCP Protocol

What type of DHCP packet is used by a device to retrieve an IP address?

HINT: DHCP ********

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🚩DHCP Discover

What type of DHCP packet does a device send once it has been offered an IP address by the DHCP server?

HINT: DHCP *******

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🚩DHCP Request

Finally, what is the last DHCP packet that is sent to a device from a DHCP server?

HINT: DHCP ***

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🚩DHCP ACK

Task 5 - Continue Your Learning: OSI Model

OSI ModelTryHackMe

https://tryhackme.com/room/osimodelzi [SUBSCRIBER ONLY]

Join the "OSI Model" room.

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