Mac address ping tool3/28/2024 ![]() ![]() Otherwise, we display an error message: $. If the MAC address is found in the ARP cache, we send two echo requests. In this case, the script gets the MAC address as an argument, then uses arp to retrieve the associated IP address. Mac_address="$1" # Get MAC address from a command-line argument Ip_address=$(arp -n | grep "$mac_address" | awk '')Įcho "MAC address not found in ARP cache." # Function to ping a specific MAC address Let’s take a look at the script via cat: $ cat ping_mac.sh As a result, arp-scan discovered one host 192.168.244.2 with its corresponding MAC address, verifying its availability. ![]() Further, –localnet can be used in which case the targets are generated from the network interface IP address and netmask.įinally, arp-scan performed an ARP sweep on the local network with a specific target MAC address. Hence, we can use IP addresses or hostnames. Moreover, arp-scan needs target hosts specification as an argument. In this example, we used –destaddr to specify the desired MAC address. Then, we can send ARP requests to a specific Network Interface Card ( NIC): $ sudo arp-scan -destaddr=00:50:56:fd:38:2c -localnet Hence, we can use arp-scan to check the availability of a MAC address in the network.įirst, let’s install arp-scan: $ sudo apt-get install arp-scan The output shows that arping successfully sent two ARP requests to the specified MAC address via the network interface enp0s5 and received responses.Īrp-scan is a command-line tool to actively scan and discover devices on a network by sending ARP requests. Moreover, -I indicates enp0s5 as the network interface for sending the requests. In this case, we used -c to define the number of ARP requests to send. In addition, the output provides information about the discovered hosts within the specified network address range, including their IP addresses, MAC addresses, and responsiveness.Īt this point, we use arping to ping by any found MAC address: $ sudo arping -c 2 -I enp0s5 16:7D:DA:F4:27:64Ħ2 bytes from 10.211.55.2 (16:7d:da:f4:27:64): icmp_seq=0 time=294.351 usecĦ2 bytes from 10.211.55.2 (16:7d:da:f4:27:64): icmp_seq=1 time=367.207 usecĢ packets transmitted, 2 packets received, 0% unanswered (0 extra) In this example, we used -sn to scan focused on determining which hosts are up and responsive on the network. Nmap done: 256 IP addresses (4 hosts up) scanned in 2.07 seconds Nmap scan report for prl-local-ns-server.shared (10.211.55.1) Packet capture uses tcpdump and runs in the background.Īfter a capture is performed you can either look into it using the View capture button in the jobs tab or download the pcap file(s) to inspect it in an external tool, such as Wireshark.Then, we can use nmap to find MAC addresses in the network: $ sudo nmap -sn 10.211.55.0/24 Enter 0 (zero) for no count limit.ĭescription to be displayed in “jobs” tab This is the number of packets the packet capture will grab (per selected interface).ĭefault value is 100. The Packet length is the number of bytes of each packet that will be captured.ĭefault value is 0, which will capture the entire frame regardless of its size. If you leave this field blank, all packets on the specified interface will be captured.Įxample: not 10.0.0.0/24 not and not 11.0.0.1 or 00:0a:01:02:03:04 Multiple IP addresses or CIDR subnets may be specified as boolean expression. Matching can be negated by preceding the value with “ not”. The packet capture will look for this address in either field. This value is either the Source or Destination IP/MAC address or subnet in CIDR notation. Select all but the protocol selected below When set, the system will capture all traffic present on the interface in stead A tcpdump process is started on each selected interface List of interfaces to start a capture on. It has some options you can choose from, which are detailed below. The packet capture module can be used to deep dive into traffic passing a (or multiple) network interfaces. ![]()
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