Patent ID: 11909717
Assignee: JUNIPER NETWORKS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A host network system comprising:
a network interface implemented in circuitry; and
one or more processors implemented in circuitry and configured to:
receive a first message according to Duplicate Address Detection Protocol (DAD) from a first local network device, the first message including data indicating that the first message includes a first range of global Internet protocol (IP) addresses, the data further indicating a first ordinal first global IP address in the first range and a first range value;
determine that at least one global IP address in the first range of global IP addresses starting with the first ordinal first global IP address and through the first range value is reserved by the host network system;
send, via the network interface, a response message representative of the at least one global IP address;
receive a second message according to DAD from a second local network device, the second message including data indicating that the second message includes a second range of global IP addresses, the data further indicating a second ordinal first global IP address in the second range and a second range value;
determine that no global IP addresses in the second range of global IP addresses are reserved by the host network system; and
in response to determining that no global IP addresses in the second range of global IP addresses are reserved by the host network system, ignore the second message.