NET150 Labs - eitan-j/tech-journal GitHub Wiki
Lab 7-2
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]