Hi all, I'm beginner here with level of "CCNA INTRO", and CCSP will be my next step. I found out some programs that can monitor network traffic and can throw out any undesired PC from the network. Those programs are Netcut, Win_ARP_Spoofer. I read in some Security-related websites that these programs send fake ARP requests and replies to do that, but i still can't imagine how ARP requests do that harmful effect. As i understood from CCNA INTRO book ARP means that u have an IP address and needs its corresponding MAC address ..., right ? My questions:
1- How those programs work ? 2- How do Switches accept ARP replies without sending ARP requests in advance ? " Isn't it a security hole ? " 3- If those programs use ARP Requests not Replies how can ARP Requests cause this harmful effect ? " I'm sure that they use ARP requests and/or replies as i found in WinArpSpoofer Options. " Thanx in advance, luckyboy- posted
17 years ago