---

---

I think for mapping purpsose

---

Posted by Hash007

This is only designing consideration, no other technical purpose...

---

Posted by waqqas1

Dear,There may be no simple direct mapping (like truncation) to the 32-bit IP address, since the address of an individual Ethernet controller is a unique 48-bit value assigned by the manufacturer that could conceivably conflict with other addresses on the local network if a subset of the 48-bits is used to form the local host part of the IP address.
To solve this potential conflict, we choose a mapping that depends on table lookup. Each host on the local network is assigned an IP address with a unique local host part for that network.

---

Posted by sagitraz

Can u please give an example? I'm not able to understand how we can map a 48bit MAP to a 32bit IP address?

---

Posted by grr

for mapping MAC address into IPV4 we use 32 bit address

---

Posted by HamidAliKhan

IPv4 addresses are 32 bits, while MAC addresses are 48 bits, so mapping every possible MAC address into an IPv4 address requires 32-bit address and its achieve by overlaping of the addresses.

---

Posted by sagitraz