Method and apparatus providing policy-based determination of network addresses
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United States of America Patent
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Feb 26, 2008
Grant Date -
N/A
app pub date -
Oct 24, 2002
filing date -
Oct 24, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method is disclosed for policy-based determination of a network address for a client in a network. A request for a network address is received from a client. A policy response is received that identifies a scope of network addresses for the client. A request source address value in the client request is modified, based on the policy response. The modified client request is sent to a server that can assign network addresses within the identified scope. A network address for the client is received, which has been assigned by the server within the identified scope. The network address is provided to the client. A specific embodiment modifies a 'giaddr' field value in a DHCP request, before relaying the request to a DHCP server, based on a policy decision that specifies a scope to be used for the network address of the client.
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