I have a network issue in which I need to test setting up routing and a VPN tunnel between to Cisco cable modems (ubr924s). The thing is, I don't have a cable connection in my lab environment. I am racking my brains for a way to connected to cisco cable modems back to back using the cablemodem0 interfaces. Is this possible without the cable network head-end equipment (ie. is there an easy way to emulate a cable network the way you would a crossover T1 cable between two routers with T1 cards)?
I am guessing this may be like ISDN.....go out and buy something. Anyone have any creative ideas?