We are going to establish a VPN with one of our business partners. They have been using PIX firewall for their other VPN connections.
1. Do I need to use PIX firewall or using IPSec with a regular router would be enough? Any limit on type of the router (2500 series could be used ?)
2. What other HW and/or SW do I need ? Do I need a separate router or I can use our current internet router?
3. What options do I have as different solution for this project?
As I'm new in VPN, I need some advice to get to the right path. Thanks for your help.