I am looking for a little guidance on coming up with a configuration for a very complicated situation. What I'm looking to do is to run a PPPoE ADSL connection on a Cisco 1801. This 1801 will then need to do an IPSec tunnel back to a Juniper ERX.
Also, I will need to do several Static NATs with one of the subnets that will be tunneled. For example, the ethernet subnet of the Cisco will be 192.168.100.254/24. I will then route 10.20.95.0/24 via the IPSec tunnel and will need to create specific Static NAT's throughout the subnet, such as 10.20.95.1 will equal 192.168.100.100.
The real problem I am trying to wrap my head around is doing the Dial Backup and then doing a NAT Overload on the Dialer interface in conjunction to the vpdn pppoe dialer and the IPSec tunnel with Static NAT configs.
Any thoughts or suggestions?