VPN server is behind the cisco adsl 857w router/modem.
From a remote site, we want to establish an IPsec VPN tunnel and a PPTP remote VPN access.
#1. How to configure the 857w to bridge mode or modem only?
#2. If 857w ramains as adsl router/NAT, how to configure this router such that IPSec VPN tunnel can be established and PPTP remote VPN access would work?
Many many thanks.