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Chabot College ELEC 99.08 Hyperterminal Access to Routers CISCO NETWORKING ACADEMY What is Hyperterminal? • A PC application installed on all Windows machines that provides “terminal emulation” • It enables the PC to act like a terminal. • So what is a terminal... CISCO NETWORKING ACADEMY What is a Terminal? • User box – Monitor – Keyboard – Serial port (connects to host) • Has no: – CPU – Storage – Operating system CISCO NETWORKING ACADEMY Input: 100-240VAC Freq: 50.60 Hz Current: 1.2-0.6A Watts: 40W AUI AUI SERIAL 0 SERIAL 1 CONSOLE AUX CISCO 2514 SD PC Terminal Emulation • PC with terminal emulation software – Hyperterminal – WRQ Reflections – etc. CISCO NETWORKING ACADEMY PC Terminal Emulation • Console connection: – Serial – Rollover cable – Point to point – Requires physical access to router CISCO NETWORKING ACADEMY COM1 Input: 100-240VAC Freq: 50.60 Hz Current: 1.2-0.6A Watts: 40W AUI AUI SERIAL 0 SERIAL 1 CONSOLE AUX CISCO 2514 con0 SD PC Terminal Emulation • Telnet connection: NIC – via network – Ethernet cable – Shared, multipoint – Remote access to router CISCO NETWORKING ACADEMY Input: 100-240VAC Freq: 50.60 Hz Current: 1.2-0.6A Watts: 40W AUI AUI SERIAL 0 SERIAL 1 CONSOLE AUX CISCO 2514 e0 SD Serial Communications • Data sent one bit at a time (serially) • Wires for: – Send – Receive – Signaling & flow-control (CTS, DTR, etc.) • Many standards: – EIA/TIA-232 (PC) – V.35 (router) CISCO NETWORKING ACADEMY Serial Communications • Terminal serial connectors – DB25 (25 pin) • PC serial connectors – DB25 – DB9 CISCO NETWORKING ACADEMY Serial Communications • Cisco supplies RJ45 to DB adapters to connect rollover cables to DB25 and DB9 CISCO NETWORKING ACADEMY Serial Communications • Serial devices connected point-to-point must have matching settings: – bits per second (baud rate) – number of data bits – parity – number of stop bits – flow control method CISCO NETWORKING ACADEMY Serial Communications • Required settings for Cisco router con0: – bits per second:9600 – data bits: 8 – parity: none – stop bits: 2 – flow control: none CISCO NETWORKING ACADEMY Using Hyperterminal • Start | Programs | Accessories |Communications | Hyperterminal • When prompted, name your “connection”. • In the “Connect To” dialog, from the “Connect Using:” list, select: – TCP/IP Winsock for a telnet network connection to the router’s vitual terminal ports. When prompted, specify • the target router’s IP address. – Direct to Com1 for a serial connection to the router console port. When prompted, specify: • • • • • bits per second: 9600 data bits: 8 parity: none stop bits: 2 flow control: none • Press <return> or <enter> a few times to activate the connection. • (Try it!) CISCO NETWORKING ACADEMY Standard Console Connections CISCO NETWORKING ACADEMY Our Lab Setup Input: 100-240VAC Freq: 50.60 Hz Current: 1.2-0.6A Watts: 40W rtr-B AUI AUI SERIAL 0 SERIAL 1 CONSOLE AUX CISCO 2514 rtr-A Input: 100-240VAC Freq: 50.60 Hz Current: 1.2-0.6A Watts: 40W AUI AUI SERIAL 0 SERIAL 1 CONSOLE SD AUX CISCO 2514 rollover rollover patch cable straight-thru PC-A CISCO NETWORKING ACADEMY terminal PC-B SD