Test the reachability of a device on your network. Uses ICMP and can tell you the round-trip time.
arp
netstat
nmap
ping
determine MAC address from IP address
nslookup
nmap
ping
arp
capture packets from the command line
netcat
tcpdump
nmap
arp
‘read’ or ‘write’ to the network - open a port and send or recive traffic.
tcpdump
nmap
netcat
nslookup
look up info on different DNS names
nslookup/dig
nmap
tcpdump
ping
determine the route a packet takes to get to its destination
netstat
ping
nslookup/dig
tracert
Determines TCP/IP and network adapter information,
nmap
ipconfig
arp
netcat
Find and learn more about network devices. This can do port scans to identify open ports and it can find the OS without logging in to a device.
netstat
tracert
nslookup/dig
nmap