My grandfather gave me a Cisco 2500 series router and it looks like it predates Ethernet. How can I get this working? What are all these ports, what signals do they use,
Router Ethernet over coax Virtual private network Cisco Systems Multimedia over Coax Alliance, wifi home, computer Network, electronics, electronic Device png | PNGWing
Cable modem - Wikipedia
Cisco AIR-PWRINJ-BLR2 |Power Injector |Aironet 350, 1100, 1130, 1200 Series
Existing coax to Ethernet : r/HomeNetworking
Amazon.com: Coaxial to Ethernet Adapter, 4 Pack Coax RF F Female to RJ45 Male Converter UIInosoo for Line Tester : Electronics
Amazon.com: Cisco-Linksys Cable Modem with Ethernet USB Connection : Electronics
Amazon.com: Comcast Xfinity CA010AAB MoCA Network Adapter for Ethernet Over Coax, Coaxial Cable to Ethernet Converter, Works with Any Ethernet Device/Router (1-Pack, ECB6250S02) : Electronics
What is Ethernet over Coax, and how does it make your WiFi better? - Quora
Ethernet Over Coax Adapter (2-Pack) | TRENDnet - TRENDnet TMO-311C2K
Solved: Packet Tracer question - cable modem? - Cisco Community