problem with PPTP authentication through a tunnel server
I'm trying to authenticate users connecting with PPTP to Radius, I configured the Cisco 3660 (NAS) for accepting these connections but I'm experiencing some problems, it authenticates correcttly but it gives me the 734 DUN error which is
Error 734 : The PPP link control protocol terminated..
i searched on the web and all I found as a fix for this error was to clear on the pptp client the Enable LCP Extentions box, but unsuccessful, the configuration of vpdn and virtual-template are in the following statements :
! Default PPTP VPDN group
ip unnumbered FastEthernet0/0
peer default ip address pool ipko-ippool1
no ppp lcp fast-start
ppp authentication pap ppp-radius
ppp ipcp predictive
and here are some Debugs ( debug ppp authentication and debug ppp errors)
ppp727 PPP: Using vpn set call direction
ppp727 PPP: Treating connection as a callin
ppp727 PPP: Authorization required
ppp727 PAP: I AUTH-REQ id 28 len 16 from "mesut"
ppp727 PAP: Authenticating peer mesut
ppp727 PPP: Sent PAP LOGIN Request
ppp727 PPP: Received LOGIN Response PASS
Vi3.1 PAP: O AUTH-ACK id 28 len 5
Vi3.1 IPXCP: LCP not open, discarding packet
Vi3.1 IPCP: LCP not open, discarding packet
if you need any other output from the router to identify the problem just ask me to do so
Re: problem with PPTP authentication through a tunnel server
The error "734 : The PPP link control protocol terminated" probably indicates incorrect security settings in Dial-up Networking connection. Please do this procedure at clients, go to dial up networking..
Select the XTRA connection
Select Edit entry and modem properties
Click the Security tab
Click Accept any authentication including clear text
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