NET150 Labs - eitan-j/tech-journal GitHub Wiki

Lab 9-2

Lab 9-1

TCP/IP Lab

Lab 7-2

Lab 7-1

Lab 6-2

  • Each port on a router has to connect to a different subnet

Lab 6-1

  • Subnet address - lowest host on subnet
  • Broadcast address - highest host on subnet

Lab 5-1

Packet tracer

  • Router connecting to PC uses cross-over cable
  • To use sniffer - put between two devices

Lab 4-3

Packet tracer

  • Set default gateway in router and in end devices
  • Make sure to set port status to "on" in router config
  • Stopwatch icon for packet simulation mode
  • Can save setting etc. in router config

Lab 4-2

Packet tracer

  • To add IP - in config, select NIC card and set IP and mask
  • show mac-address-table in switch CLI to see what MAC address is connected to what port

Lab 4-1

Packet tracer

Lab 3-1

Wireshark

  • Must run as administrator to delete ARP cache
  • arp -a - shows ARP cache
  • arp -d - deletes ARP cache
  • ARP request will automatically start - make sure to start capture before deleting
  • ff.ff.ff.ff.ff.ff is broadcast MAC address - sent to all on network
  • ARP is only used within a network

Lab 2-2

Wireshark

  • Make sure to start and stop capture at right time
  • Search using filter at top
  • MAC addresses on other networks are not sent

Lab 2-1

Packet tracer

  • To configure - click on PC, config
  • To connect - use connection tab (lightning bolt), choose connection (lightning bolt is auto)
  • To use command - click on PC, desktop, terminal, type command

Lab 1-1

Part 1

  • ipconfig - shows network info
  • ipconfig /all - shows more info
  • ping [address] - tests connection to [address]

Part 2

  • tracert [address] - shows route to [address]
  • nslookup [address] - shows IPs of [address]