Patent ID: 8072975
Filing Date: 2011-12-06
Classification: H04L

Abstract:
1. A method comprising: providing, at a first node, a request message for transmission via a network to a second node, the transmission performed exclusively using a first network address format, the request message identifying the second node using a first network address compliant with the first network address format, the request message comprising an Internet Control Message Protocol (ICMP) header, a type parameter therein identifying the request message as a host discovery request message, the type parameter having a value heretofore not allocated by the ICMP; receiving, at the first node, a host discovery reply message from the second node responsive to the host discovery request message, the host discovery reply message having the first network address format and including information representative of a second network address of the second node, the second network address having a second network address format different than the first network address format; extracting the information representative of the second network address from the host discovery reply message; and storing the information representative of the second network address at a datastore associated with the first node.