发明名称 |
TECHNIQUES FOR AUTHENTICATING A SUBSCRIBER FOR AN ACCESS NETWORK USING DHCP |
摘要 |
Techniques for authenticating a user for access to an IP network include receiving from the user's host a DHCP request which includes user identifier data. A random challenge value is determined and sent to the user's host in a DHCP message format. A response message that includes a response value is received from the user's host in DHCP format. A verification value is determined based on a password value associated with the user identifier value in an AAA server and the current challenge value using a secure process that renders impractical an attempt to derive the password. If it is determined that the response value does not match the verification value, then a DHCP offer is prevented from being sent to the user's host in response to the DHCP request. Thus, a user is authenticated using DHCP instead of PPP. |
申请公布号 |
EP1987629(A2) |
申请公布日期 |
2008.11.05 |
申请号 |
EP20070756636 |
申请日期 |
2007.02.03 |
申请人 |
CISCO TECHNOLOGY, INC. |
发明人 |
TOWNSLEY, WILLIAM MARK;DROMS, RALPH;DEC, WOJCIECH |
分类号 |
H04L29/06;H04L9/32;H04L29/12 |
主分类号 |
H04L29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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