LAN type internet access network and subscriber line accommodation method for use in the same network
AssigneeNEC Corporation
InventorToshio Miyachi
Life of this patent
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Abstract
L2 switch 1 accommodates a plurality of subscriber lines and is connected to an upper side of an internet including service/management device 5 to exchange data packet. L2 switch 1 transmits broadcast packet of DHCP and ARP among the exchanged data packets to not the side of subscriber line but the upper side of the internet. When L2 packet transfer device 2 transfers the broadcast packet of ARP request to IP address managing device 3, L2 packet transfer device 2 determines whether the ARP request is transmitted from a user terminal connected to the subscriber line or from service/management device 5 or packet transfer device 4.
Claims8
A LAN type internet access network, in which a DHCP (Dynamic Host Configuration Protocol) request for requesting the address assignment of an IP (Internet Protocol) address and an ARP (Address Resolution Protocol) request for requesting a MAC (Media Access Control) address corresponding to the IP address are transmitted by broadcast, comprising means for limiting transmission of the DHCP request and the ARP request to the side of a subscriber line.
A subscriber line accommodating method for use in a LAN type internet access network, in which a DHCP (Dynamic Host Configuration Protocol) request for requesting the address assignment of an IP (Internet Protocol) address and an ARP (Address Resolution Protocol) request for requesting a MAC (Media Access Control) address corresponding to the IP address are transmitted by broadcast, said subscriber line accommodating method comprising the step of limiting transmission of said DHCP request and said ARP request to the side of said subscriber line.
Dependencies are inferred from the claim text.