ipguard: ipguard (tool to protect LAN IP adress space by ARP spoofing) ipguard: ipguard: ipguard listens network for ARP packets. All permitted MAC/IP pairs ipguard: listed in 'ethers' file. If it recieves one with MAC/IP pair, which ipguard: is not listed in 'ethers' file, it will send ARP reply with ipguard: configured fake address. This will prevent not permitted host to ipguard: work properly in this ethernet segment. ipguard: ipguard: ipguard: ipguard: