Duplicate network address detection
First Claim
1. A method for providing enhanced error information for duplicated addresses in a computer network, comprising the steps of:
- receiving a plurality of packets encoded according to a first protocol, said packets encapsulating data encoded according to a second protocol;
extracting a first source address from said packets according to said first protocol;
determining that said first source address is a substantial duplicate of a known assigned address;
responsive to determination of said first source address being a duplicate address, extracting a second source address from said encapsulated data according to said second protocol; and
providing said first source address and said second source address to an error log which is reviewable by a system administrator in order to facilitate correction of said duplicate assigned address.
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0 Petitions
Accused Products
Abstract
A plurality of data packets encoded according to a first protocol are received which encapsulate data encoded according to a second protocol. A first source address is extracted from the packets according to the first protocol, it is determined whether or not the first source address is a substantial duplicate of a known assigned address. If it is a duplicate, a second source address is extracted from the encapsulated data according to the second protocol, and the first source address and said second source address are provided in an enhanced error log so that a system administrator may correct the duplicate assigned address. Enhanced embodiments of the invention included analysis of data encapsulated by a third, fourth and subsequent protocols, and automatic determination of each protocol encoding format.
270 Citations
24 Claims
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1. A method for providing enhanced error information for duplicated addresses in a computer network, comprising the steps of:
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receiving a plurality of packets encoded according to a first protocol, said packets encapsulating data encoded according to a second protocol; extracting a first source address from said packets according to said first protocol; determining that said first source address is a substantial duplicate of a known assigned address; responsive to determination of said first source address being a duplicate address, extracting a second source address from said encapsulated data according to said second protocol; and providing said first source address and said second source address to an error log which is reviewable by a system administrator in order to facilitate correction of said duplicate assigned address. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15)
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9. A computer readable medium encoded with software for providing enhanced error information for duplicated addresses in a computer network, said software performing the steps of:
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receiving a plurality of packets encoded according to a first protocol, said packets encapsulating data encoded according to a second protocol; extracting a first source address from said packets according to said first protocol; determining that said first source address is a substantial duplicate of a known assigned address; responsive to determination of said first source address being a duplicate address, extracting a second source address from said encapsulated data according to said second protocol; and providing said first source address and said second source address to an error log which is reviewable by a system administrator in order to facilitate correction of said duplicate assigned address. - View Dependent Claims (16)
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17. A system for providing enhanced error information for duplicated addresses in a computer network, said system comprising:
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a packet receiver configured to receive a plurality of packets encoded according to a first protocol, said packets encapsulating data encoded according to a second protocol; a first protocol analyzer configured to extract a first source address from said packets according to said first protocol; a duplicate address detector for determining that said first source address is a substantial duplicate of a known assigned address; a second protocol analyzer for extracting a second source address from said encapsulated data according to said second protocol responsive to determination of said first source address being a duplicate address; and a data logger configured to provide said first source address and said second source address to an error log which is reviewable by a system administrator in order to facilitate correction of said duplicate assigned address. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification