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Connecting PPTP VPN with CHAP only Protocol through Android and Configuring Cisco Jabber


I have configured PPTP VPN on Cisco 2821 router and PPTP works fine through Windows. But when i try to connect through Android default VPN it gives me following error. also please see attached error i get on Android mobile.


ppp128 PPP: Using AAA Unique Id = 9E
ppp128 PPP: Authorization NOT required
ppp128 PPP: Using vpn set call direction
ppp128 PPP: Treating connection as a callin
ppp128 PPP: Session handle[4000080] Session id[128]
ppp128 CHAP: O CHALLENGE id 1 len 26 from "R2821"
ppp128 CHAP: I RESPONSE id 1 len 26 from "cisco"
ppp128 PPP: Sent CHAP LOGIN Request
ppp128 PPP: Received LOGIN Response PASS
ppp128 PPP AUTHOR: Author Data NOT Available
Vi3 CHAP: O SUCCESS id 1 len 4
%LINK-3-UPDOWN: Interface Virtual-Access3, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access3, changed state to up
Vi3 PPP: Sending Acct Event[Down] id[9E]
Vi3 PPP: Clearing AAA Unique Id = 9E
%LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access3, changed state to down
%LINK-3-UPDOWN: Interface Virtual-Access3, changed state to down




Moreover, MS-CHAP-v2 does not authentication through local AAA default list. Does it only work with Radius?


Following is the configuration done on Cisco 2821 router.

aaa new-model
aaa authentication login default local
aaa authentication ppp default local


vpdn enable
vpdn-group 1
! Default PPTP VPDN group
protocol pptp
virtual-template 1
l2tp tunnel timeout no-session 15


interface Virtual-Template1
ip unnumbered GigabitEthernet0/0.1
peer default ip address dhcp-pool Data
no keepalive
ppp encrypt mppe auto
ppp authentication chap ms-chap-v2



Thanks in Advance


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