Saturday, June 26, 2010

Address resolution protocol


Click Here For Free Windows Downloads
mywindowsdownloads.blogspot.com

Click here for all Free Linux Downloads



Blog address for Linux in Hindi

Using address resolution protocol (arp):


The arp associates hardware address of network card with IP address. Once any computer makes the contact with another computer on the network, both the systems exchange hardware addresses. Thereafter these are stored in ARP database. We can find this arp database on our computer by using arp command:



Based on how the contact was made, address column lists either host name or the IP address of the computer. The computer name is taken from /etc/hosts file. HWtype column shows the type of network adapter. HWaddress column shows the hardware address of the adapter in hexadecimal. If we see a duplicate IP address on two different MAC addresses then we must remove the associated system’s entry from the arp table as it will stop communication on the network. To remove the entry we should use the syntax arp -d computername.The computername should either be the name of computer or the IP address of the computer.

No comments:

Post a Comment