Have got an 851w connected through PPPoE DSL. The 851 then establishes a VPN connection to the home office. It works but is very slow and if I do a ping -t to one of the servers on the otherside I lose about 5% of packets.
When I configure a laptop to do the PPPoE and connect with the software VPN client I have 0% packet loss.
Running the latest version of IOS 12.4(15)T14