[44net] Setting up a tunnel on a Cisco 2921/k9 Router

I am trying to setup a Cisco 2921/K9 router. The router has 3 gigabit ethernet ports and a CISCO EHWIC-4ESG 4-Port Gigabit WAN Interface Card<https://www.ebay.com/itm/CISCO-EHWIC-4ESG-4-Port-Gigabit-WAN-Interf….l2649>. I can not get a static IP address from Spectrum so I need to set up a tunnel. Does anyone has have any dealing with this type of setup. I am looking for a way to where to start from. 73's David A. Pechon Sr. KA5TTZ U.S. Army Retired (SSG/SS) Cell # (985)520-1748 HAMSHACK HOTLINE #4525