Problem with configuring IOS EZVPN and VPN 3k using external

From: dip (diptanshu.singh@gmail.com)
Date: Wed Jul 11 2007 - 16:40:51 ART


Hi folks , i was trying to configure IOS easyvpn with vpn
concentrator. i am using an external group which is configured on acs
server.the configuration for ios eazyvpn is

crypto isakmp policy 10
 encr 3des
 hash md5
 authentication pre-share
 group 2

crypto ipsec client ezvpn ezvpn_cfg
 connect manual
 group ezvpn key ezvpn
 mode network-extension
 peer x.x.x.x

interface FastEthernet0/0
 ip address x.x.x.x x.x.x.x
 crypto ipsec client ezvpn ezvpn_cfg inside

interface Serial0/0
 no ip address
 encapsulation frame-relay

interface Serial0/0.1 point-to-point
 ip address x.x.x.x x.x.x.x
 frame-relay interface-dlci 100
 crypto ipsec client ezvpn ezvpn_cfg

I had configured the vpn concentrator with an external group eazyvpn.
i had configured the acs server with a user eazyvpn password
eazyvpn.the radius attributes configured for this user are

[3076\012] CVPN3000-IPSec-Sec-Association
                 ESP-3DES-MD5
[3076\013] CVPN3000-IPSec-Authentication
       RADIUS
[3076\016] CVPN3000-IPSec-Allow-Passwd-Store
          Allow
[3076\027] CVPN3000-IPSec-Split-Tunnel-List
        split_tunnel_list
[3076\030] CVPN3000-IPSec-Tunnel-Type
       Remote-Access
[3076\031] CVPN3000-IPSec-Mode-Config
        On
[3076\034] CVPN3000-IPSec-Over-UDP
   On
[3076\055] CVPN3000-IPSec-Split-Tunneling-Policy
    Only tunnel networks in the list
[3076\064] CVPN3000-Allow-Network-Extension-Mode
       Yes

now whenever i try to connect it says phase 2 failed.my quick mode is
unsuccesfull.
the error which comes on the router is below

12:19:43: %CRYPTO-6-IKMP_MODE_FAILURE: Processing of Quick mode failed with peer
 at 172.31.9.2
ezvpn-router#show crypto ipsec client ezvpn
Easy VPN Remote Phase: 2

Tunnel name : ezvpn_cfg
Inside interface list: FastEthernet0/0,
Outside interface: Serial0/0.1
Current State: SS_OPEN
Last Event: SOCKET_READY
Split Tunnel List: 1
       Address : 10.1.1.0
       Mask : 255.255.255.0
       Protocol : 0x0
       Source Port: 0
       Dest Port : 0

Logs for the vpn conc. is as

Group [ezvpn] User [cisco]
PHASE 1 COMPLETED

324 07/11/2007 22:36:23.980 SEV=5 IKE/35 RPT=6 x.x.x.x
Group [ezvpn] User [cisco]
Received remote IP Proxy Subnet data in ID Payload:
 Address x.x.x.x, Mask x.x.x.x Protocol 0, Port 0

327 07/11/2007 22:36:23.980 SEV=5 IKE/34 RPT=10 x.x.x.x
Group [ezvpn] User [cisco]
Received local IP Proxy Subnet data in ID Payload:
 Address 10.1.1.0, Mask 255.255.255.0, Protocol 0, Port 0

330 07/11/2007 22:36:23.980 SEV=5 IKE/66 RPT=10 172.31.235.93
Group [ezvpn] User [cisco]
IKE Remote Peer configured for SA: ESP-3DES-MD5

331 07/11/2007 22:36:23.990 SEV=5 IKE/75 RPT=10 x.x.x.x
Group [ezvpn] User [cisco]
Overriding Initiator's IPSec rekeying duration from 2147483 to 28800 seconds

333 07/11/2007 22:36:41.650 SEV=4 IKEDBG/97 RPT=4 x.x.x.x
Group [ezvpn] User [cisco]
QM FSM error (P2 struct &0x35e5aa4, mess id 0x91292e44)!

NOTE: the configuration works fine when i use CLIENT mode. IT fails
when i change to NEM



This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:40 ART