ARP only operates on the local network, and cannot be routed. Was designed to work with any layer-2 and layer-3 address format, but the most common use is to map IP addresses to Ethernet hardware addresses, and this is The ARP protocol is a layer-2 (datalink layer) protocol that is used to determine a host's layer-2 address given its layer-3 (network layer) address. Support serial links such as PPP or SLIP, because ARP is not supported on them. It could also support token ring and FDDI, but they have not been tested. Each host in this list uses 28 bytes of memory, so scanning a Class-B network (65,536 hosts) requires aboutġ.75MB of memory for the list, and scanning a Class-A (16,777,216 hosts) requires about 448MB.Īrp-scan supports Ethernet and 802.11 wireless networks. The list of target hosts is stored in memory. You can also use network specifications IPnetwork/bits,
Or with the -file option, you can use either IP addresses or hostnames.
For hosts specified on the command line, or with the -file For hosts specified on the command line, With the -file option or by specifying the -localnet option which causes all possible hosts on the network attached to the interface (asĭefined by the interface address and mask) to be scanned. The target hosts to scan may be specified in one of three ways: by specifying the targets on the command line by specifying a file containing the targets By default, the ARP packets are sent to the Ethernet broadcastĪddress, ff:ff:ff:ff:ff:ff, but that can be changed with the -destaddr option. System interface list for the lowest numbered, configured up interface (excluding loopback). If this option is not present, arp-scan will search the The network interface to use can be specified with the -interface option.
192.168.1.0:255.255.255.0) to specify all hosts in the given network and mask.ĭescription arp-scan sends ARP packets to hosts on the local network and displays any responses thatĪre received. Inclusive range, or IPnetwork:NetMask (e.g. 192.168.1.0/24) to specifyĪll hosts in the given network (network and broadcast addresses included), IPstart-IPend (e.g.
You can also specify the target as IPnetwork/bits (e.g. The target hosts can be specified as IP addresses or hostnames. You will need to be root, or arp-scan must be SUID root, in order to run arp-scan, because the functions that it uses to read and write Instead, or the -localnet option is used, in which case the targets are generated from the network interface IP address and netmask. Target hosts must be specified on the command line unless the -file option is given, in which case the targets are read from the specified file
0 kommentar(er)
