intro-to-lan.md

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

🔌 Intro to LAN

{% embed url="https://tryhackme.com/room/introtolan" %} https://tryhackme.com/room/introtolan {% endembed %}

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?

Reveal Flag 🚩

🚩Local Area Network

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

{% hint style="warning" %} HINT: This is the term given to deciding what route packets should take {% endhint %}

Reveal Flag 🚩

🚩Routing

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

{% hint style="warning" %} HINT: Something smarter than a hub/repeater. {% endhint %}

Reveal Flag 🚩

🚩Switch

What topology is cost-efficient to set up?

{% hint style="warning" %} HINT: *** Topology {% endhint %}

Reveal Flag 🚩

🚩Bus Topology

What topology is expensive to set up and maintain?

{% hint style="warning" %} HINT: **** Topology {% endhint %}

Reveal Flag 🚩

🚩Star Topology

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

Reveal Flag 🚩

🚩THM{TOPOLOGY_FLAWS}

Task 2 - A Primer on Subnetting

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

Reveal Flag 🚩

🚩Subnetting

How many bits are in a subnet mask?

{% hint style="warning" %} HINT: This can be converted into 4 bytes {% endhint %}

Reveal Flag 🚩

🚩32

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

{% hint style="warning" %} HINT: Smallest to largest {% endhint %}

Reveal Flag 🚩

🚩0-255

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

{% hint style="warning" %} HINT: ******* Address {% endhint %}

Reveal Flag 🚩

🚩Network Address

What address is used to identify devices within a network?

{% hint style="warning" %} HINT: **** Address {% endhint %}

Reveal Flag 🚩

🚩Host Address

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

Reveal Flag 🚩

🚩Default Gateway

Task 3 - The ARP Protocol

What does ARP stand for?

Reveal Flag 🚩

🚩Address Resolution Protocol

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

Reveal Flag 🚩

🚩Request

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

{% hint style="warning" %} HINT: *** Address {% endhint %}

Reveal Flag 🚩

🚩MAC Address

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

{% hint style="warning" %} HINT: ** Address {% endhint %}

Reveal Flag 🚩

🚩IP Address

Task 4 - The DHCP Protocol

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

{% hint style="warning" %} HINT: DHCP ******** {% endhint %}

Reveal Flag 🚩

🚩DHCP Discover

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

{% hint style="warning" %} HINT: DHCP ******* {% endhint %}

Reveal Flag 🚩

🚩DHCP Request

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

{% hint style="warning" %} HINT: DHCP *** {% endhint %}

Reveal Flag 🚩

🚩DHCP ACK

Task 5 - Continue Your Learning: OSI Model

{% embed url="https://tryhackme.com/room/osimodelzi" %} https://tryhackme.com/room/osimodelzi [SUBSCRIBER ONLY] {% endembed %}

Join the "OSI Model" room.

{% hint style="success" %} No answer needed {% endhint %}