Method for blocking host in IPv6 network
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United States of America Patent
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May 29, 2012
Grant Date -
Jul 28, 2011
app pub date -
Jan 15, 2010
filing date -
Mar 20, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed herein are methods of searching for a host in a network using IPv4 and of blocking and searching a host in an IPv6 network which blocking access to an unauthorized network. The present invention provides a method of searching for a host in an IPv6 network, including the steps of requesting host information, including link-layer address information and IP address information about an IP to be searched for, by sending a Neighbor Solicitation (NS) packet in which the IP to be searched for is set in an ICMPv6 target address to the network, after sending the NS packet, waiting for a predetermined time by taking a processing speed of a host and a transfer rate according to a network environment and state into consideration, after the predetermined time of waiting, determining whether a Neighbor Advertisement (NA) packet of the IP to be searched for has been received, and if, as a result of the determination, the NA packet of the IP to be searched for is determined to have been received, acquiring the host information from the NA packet.
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