Hi
if Verizon have given you a public IP address and the router is connected. you can connect to the router using any methord you do if it is connected to a local LAN
HTTP,HTTPS,SSH.TELNET,FTP
but if you have a public address you will need to use the firewall to block hackers and only allow access from know good address there is relecant informaion about this in the user guide
http://ftp1.digi.com/support/documentation/90001019.pdf
regards
James