Hi everyone, I'm a newbie in CISCO systems but i'm actually excited to work these brand. I started working in a company and they assign me the task to find out if there is a possibility to stablish a VPN tunnel between to sites that are connected to Internet via ADSL modem and the ISP works with DHCP. I got two router CISCO 2811, with 2 FE, and an external ADSL modem. My 2 main questions are:
1)Is it possible to stablish the tunnel if I only have dynamic IPs?
2) Can I stablish a firewall policy with the IOS to allow only the traffic through the tunnel? Is that related with the no-splitting concept?
I appreciate every help and advise you can give me since I'm new with a lot a of these stuff, but i'm actually learning a lot. Fell free to ask me anything specific about my router configuration (which is really basic at the moment) or anything else you need to know to help me.