DUPLICATE IP ADDRESS DETECTION BY A DHCP RELAY AGENT
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques are described for detecting duplicate IP addresses at a DHCP relay agent. Embodiments identify a list of DHCP clients that have valid IP address leases from one or more DHCP servers. Additionally, network traffic from a first node passing through the DHCP relay agent is monitored. Embodiments then determine whether the first node is using a duplicate IP address, based on the monitored network traffic and the identified list of DHCP clients.
21 Citations
24 Claims
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1-8. -8. (canceled)
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9. A system, comprising:
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a processor; and a memory containing a program that, when executed by the processor, performs an operation for detecting duplicate IP addresses, comprising; identifying a list of DHCP clients that have valid IP address leases from one or more DHCP servers; monitoring, at the DHCP relay agent, network traffic from a first node passing through the DHCP relay agent; and determining whether the first node is using a duplicate IP address, based on the monitored network traffic and the identified list of DHCP clients. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer program product for detecting duplicate IP addresses, comprising:
a computer-readable storage medium having computer readable program codes embodied therewith, the computer readable program code comprising; computer readable program code to identify a list of DHCP clients that have valid IP address leases from one or more DHCP servers; computer readable program code to monitor, at the DHCP relay agent, network traffic from a first node passing through the DHCP relay agent; and computer readable program code to determine whether the first node is using a duplicate IP address, based on the monitored network traffic and the identified list of DHCP clients. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
Specification