need help with VPN, please, on ATT/BellSouth DSL. I had been a Comcast cable subscriber, and I may go back yet.
On Comcast there were no VPN problems. Now on ATT/BellSouth DSL the VPN may stay connected 2 minutes or 2 hours, or anywhere in between. This is using all of the same hardware except for the modem. On Comcast it was a Motorola Surfboard 5120; now I have a Westell 6100 DSL modem.
Here is the setup. Westell DSL2+ Router/Modem, model E90-610030-06 Rev. D, dated July 2007 with latest firmware. Provisioned for Bridge mode, DHCP disabled. Goes to Linksys WRT150N with latest firmware. Provisioned for PPoE, KeepAlive=20 seconds, MTU=1300, DHCP. I am connected via Ethernet cable to eliminate any kind of wireless issues. The pc is a HP notebook with Broadcom NetXtreme Gigabit Ethernet NIC, VPN client is Cisco VPN Dialer Version 4.8.01.0300. Far end is Cisco Systems, Inc./VPN 3000 Concentrator Version 4.7.2.K. I have tried IPSec/TCP and IPSec/UDP; both protocols have the same failures.
Possibly a clue... the Cisco VPN Dialer statistics reports: Packets Ecnrypted: 12648 Decrypted: 12850 Discarded: 7297 Bypassed: 112
The "Discarded: 7297" seems to be a high percentage of Encrypted and Decrypted Packets.
Any suggestions will be appreciated.
When the Disconnect occurs, the Cisco VPN Dialer reports "Secure VPN Connection terminated locally by the Client. Reason 412: The remote peer is no longer responding."
Here is a portion of the log file at the point of disconnect: