3com S7906E Instruccion De Instalación

 

1-6 

Figure 1-3 Re-DHCP authentication process 

 

 

 

The re-DHCP authentication process is as follows: 

Step 1 through step 6 are the same as those in the direct authentication/Layer 3 portal authentication 

process. 

7)  After receiving an authentication acknowledgment message, the authentication client obtains a 

new public IP address through DHCP and notifies the portal server that it has obtained a public IP 

address. 

8)  The portal server notifies the access device that the authentication client has obtained a new public 

IP address. 

9)  Detecting the change of the IP address by examining ARP packets received, the access device 

notifies the portal server of the change. 

10)  The portal server notifies the authentication client of logon success. 

11) The portal server sends a user IP address change acknowledgment message to the access 

device. 

With extended portal functions, the process includes two additional steps: 

12)  The security policy server exchanges security authentication information with the client to check 

whether the authentication client meets the security requirements. 

13)  The security policy server authorizes the user to access unrestricted resources based on the 

security configuration for the user. The authorization information is stored on the access device 

and used by the access device to take control of user access. 

Complete these tasks to configure portal authentication: