Is it possible to setup DYDNS on a Cisco 861 router? If yes, what IOS version do I need? thanks for your time!

We have a PPTP VPN on a MSFT 2003 server, which was working fine with a Linksys BEFSR41 in place. Replaced with a RVS4000, enabled PPTP passthrough, and forwarded port TCP 1723 traffic to server, and now when we attempt the above mentioned VPN, we ge...

I have a customer with a VERY large L shaped house with 3 levels. The customer wants most rooms in the house, along with a pool house and a carriage house, covered by this network. What would be the best way for me to design this network using Airone...