ARP Request/Reply ??

[JC0133]

I am taking my 1st software security class in college. Right now we are learning about networking working and network security. I am trying to practice some of the commands but I am not really understanding how to do it.

So I am trying to learning how ifconfig works and how to read the results?

Also I am trying to learning how to use arp command. I open up my labtop(using linux ubuntu) and types in "arp -a".

It showed me a couple of IP addresses but I don't know how to send a request/reply? Or how to find other IP addresses.

 

[Gryz]

Most of the commands related to networking that you can type in Windows are commands to look at stuff. Look at settings, configurations, tables, etc.

ifconfig, arp, netstat (with all the different flags) are useful commands.

There are very few commands to actually do something on the network. In the sense that you start sending packets. ping and traceroute are the only 2 commands I can think of now.

Another very interesting utility is tcpdump. Tcpdump is available on all Linux platforms. On Windows you got something called WireShark. With tcpdump or wireshark, you can actually see the packets that are flying over the network. Very very useful. Still passive, but very different from arp, ifconfig, netstat, etc.