This tool simulates the presence of a computer. It will answer to ARP requests and ping. Other hosts can 'see' this virtual computer, but it will not really exist. This tool is frequently used to answer ARP when a tool is sending packets with a spoofed IP address. Parameter --ips defines the fake IP address of this computer. Parameter --eths defines the fake Ethernet address of this computer. If --no-answer-arp or --no-answer-ping is set, tool does not answers to ARP/IPv6NeighborDiscovery and ping. It works only on a Ethernet device. When e is a list, it is reordered.
| parameter | description | example |
| -d|--device device | device name | Eth0 |
| -i|--ips ips | list/range of IP addresses | 1.2.3.4,5.6.7.8 |
| -e|--eths eths | list/range of ethernet addresses | 0:2:3:4:5:6,0:2:3:4:5:8 |
| -a|--answer-arp|+a|--no-answer-arp | answer ARP | This boolean is set. Use + or --no- to unset it. |
| -p|--answer-ping|+p|--no-answer-ping | answer ICMP Echo Request | This boolean is set. Use + or --no- to unset it. |