TY - GEN
T1 - A MAC-address relaying NAT router for PC identification from outside of a LAN
AU - Murakami, Ryo
AU - Yamai, Nariyoshi
AU - Okayama, Kiyohiko
PY - 2010
Y1 - 2010
N2 - NAT (Network Address Translation) is well-known as one of the short-term solutions of IPv4 address exhaustion. NAT is a technique that shares a single IP address in several PCs, and is widely used for alleviating the IPv4 address exhaustion and as a security solution. However, when a backbone network has access control function for PCs based on their IP addresses, it cannot identify the PCs under a NAT router since their original IP addresses are hidden by the NAT router. In this research, we focus on MAC address which identifies PC on datalink layer and propose a NAT router which relays the MAC addresses of PCs inside of a LAN to the outside. Since the source MAC addresses of packets sent from PCs are preserved even after being relayed by the NAT router, a LAN access control server outside of the NAT router can still identify these PCs based on their MAC addresses instead of their IP addresses.
AB - NAT (Network Address Translation) is well-known as one of the short-term solutions of IPv4 address exhaustion. NAT is a technique that shares a single IP address in several PCs, and is widely used for alleviating the IPv4 address exhaustion and as a security solution. However, when a backbone network has access control function for PCs based on their IP addresses, it cannot identify the PCs under a NAT router since their original IP addresses are hidden by the NAT router. In this research, we focus on MAC address which identifies PC on datalink layer and propose a NAT router which relays the MAC addresses of PCs inside of a LAN to the outside. Since the source MAC addresses of packets sent from PCs are preserved even after being relayed by the NAT router, a LAN access control server outside of the NAT router can still identify these PCs based on their MAC addresses instead of their IP addresses.
KW - Access control
KW - MAC address
KW - NAT
UR - http://www.scopus.com/inward/record.url?scp=78649254816&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649254816&partnerID=8YFLogxK
U2 - 10.1109/SAINT.2010.97
DO - 10.1109/SAINT.2010.97
M3 - Conference contribution
AN - SCOPUS:78649254816
SN - 9780769541075
T3 - Proceedings - 2010 10th Annual International Symposium on Applications and the Internet, SAINT 2010
SP - 237
EP - 240
BT - Proceedings - 2010 10th Annual International Symposium on Applications and the Internet, SAINT 2010
T2 - 2010 10th Annual International Symposium on Applications and the Internet, SAINT 2010
Y2 - 19 July 2010 through 23 July 2010
ER -