I configured L2TP over IPSEC and it works fine with Windows XP and Windows 7
but when I try to connect with mobile devices I have this log:
Wed Oct 02 12:17:18 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: an undead schedule has been deleted: 'pk_recvupdate'.
Wed Oct 02 12:17:18 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Sending Informational Exchange: delete payload[]
Wed Oct 02 12:17:14 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: IPsec-SA established[UDP encap 4500->4500]: ESP/Transport 88.36.202.90->94.163.120.254 with spi=139308332(0x84dad2c)
Wed Oct 02 12:17:14 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: IPsec-SA established[UDP encap 4500->4500]: ESP/Transport 94.163.120.254->88.36.202.90 with spi=93459421(0x59213dd)
Wed Oct 02 12:17:14 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Adjusting peer's encmode 4(4)->Transport(2)
Wed Oct 02 12:17:14 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: No policy found, adjusting source address for generating the policy incase of NAT-T in Transport Mode: 94.163.120.254/32[0] 88.36.202.90/32[1701] proto=udp dir=in
Wed Oct 02 12:17:14 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: No policy found, generating the policy : 1.194.143.206/32[0] 88.36.202.90/32[1701] proto=udp dir=in
Wed Oct 02 12:17:14 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Using IPsec SA configuration: anonymous
Wed Oct 02 12:17:14 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Responding to new phase 2 negotiation: 88.36.202.90[0]<=>94.163.120.254[0]
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: ISAKMP-SA established for 88.36.202.90[4500]-94.163.120.254[4500] with spi:cb24c1b7c94a1a6e:1b4359ec551c93fe
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: KA found: 88.36.202.90[4500]->94.163.120.254[4500] (in_use=2)
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Floating ports for NAT-T with peer 94.163.120.254[4500]
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: NAT detected: PEER
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: NAT-D payload does not match for 94.163.120.254[500]
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: NAT-D payload matches for 88.36.202.90[500]
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: For 94.163.120.254[500], Selected NAT-T version: RFC 3947
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Received Vendor ID: DPD
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Received unknown Vendor ID
Wed Oct 02 12:17:13 2013 (GMT +0200): [DSR-1000N] [IKE] INFO: Received unknown Vendor ID
in DSR I see, in Status > Active VPNs > device is present with "IPsec SA Established" state, but the device isn't connect and it shows me "operation not succeed"
DSR-1000N info: Hardware Version: A1 - Firmware Version: 1.08B51_WW
thanks for any help