Know the IP address how to know the MAC address

Hello: What are you going to be sure about, if it's yourself or jú|?Domains|Net|Terminal devices such as network cards under management can be accessedYou can check in the following ways.

方fǎ一: query with arp -a.

This method can only find out the MAC address and IP address of the host that has communicated with the machine (within 20 minutes). You can run this command on any host in the CIDR block to which the remote host belongs, so that you can detect IP spoofing|Hoax dú's host.

Fang fǎ2: Use special software to check, such as nbtscan

The command method is nbtscan -r network number mask bit, which can query all IP addresses and MAC correspondences in a network segment, but the host with a firewall will stop querying.

Fang Fǎ3: If the connected switch has a network |For the management function, you can use the arp show command to display the ARP cache information of the switch, which can basically query all IP and MAC addresses, but only the network |Tube has this spring limit.

If you are searching within the inter network, you can try this, but the following fǎ is only for 合fǎ to help learn xí to communicate liú;

Fang Fǎ5: Use the Mac Address Discovery in Solarwinds software, but this tool doesn't seem to be able to query across network segments.

Thank you for knowing the team & steel seven companies;

Happy to you =,= If you have any other questions, you can use hi me, or ask questions qiú help directly to the United StatesLet's discuss.

LAN machines.

That is, everyone is in the same environment (home, school, work) and you can run cmd-" and then arp -a

If it is a WAN machine.

For example, you know it from QQ.

Then you don't have to know, it's basically impossible.

Unless by hacking methods.

PS: For WAN, you know it's not very useful.

At present, IP addresses are dynamically assigned, and IP addresses are not necessarily bound to MAC addresses.

If you want to know the MAC address, open the doc interface, enter the ipconfig all command, and you can see the MAC address.

Method 1: Use ARP-A to search the query.

This method can only find the MAC address and IP address of the host that has communicated with the machine (within 20 minutes). You can run this command on any host in the CIDR block to which the remote host belongs, so that you can detect the host with IP spoofing virus.

Method 2: Use special software, such as nbtscan

The command method is: nbtscan

rNetwork number mask bit, this method can query all IP and MAC correspondence in a network segment, but the host with a firewall is not allowed to query.

Method 3: If the connected switch has the NMS function, you can use ARP

The show command displays the ARP cache information of the switch, which can query all IP addresses

with MAC address, but only the NMS has this permission.

Method 5: Use Solarwinds for Mac

address

discovery query, but this tool doesn't seem to be able to query across network segments.

Check the IP through the MAC

Method 1: Use ARPA to query.

This method can only find the MAC address and IP address of the host that has communicated with the machine (within 20 minutes). You can run this command on any host in the CIDR block to which the remote host belongs, so that you can detect the host with IP spoofing virus.

Method 2: Use special software, such as nbtscan

The command method is: nbtscan

rNetwork number mask bit, this method can query all IP and MAC correspondence in a network segment, but the host with a firewall is not allowed to query.

Method 3: If the connected switch has the NMS function, you can use ARP

The show command does not sensitize the switch's ARP cache information, which is a subtle way that can query all IPs

with MAC address, but only the NMS has this permission.

Method 5: Use Solarwinds for Mac

address

discovery query, but this tool doesn't seem to be able to query across network segments.