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Chabot College. ELEC 99.08 Hyperterminal Access to Routers. 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. What is a Terminal?. User box Monitor Keyboard
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Chabot College ELEC 99.08 Hyperterminal Access to Routers
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...
What is a Terminal? • User box • Monitor • Keyboard • Serial port (connects to host) • Has no: • CPU • Storage • Operating system
PC Terminal Emulation • PC with terminal emulation software • Hyperterminal • WRQ Reflections • etc.
PC Terminal Emulation • Consoleconnection: • Serial • Rollover cable • Point to point • Requires physical access to router COM1 con0
PC Terminal Emulation • Telnetconnection: • via network • Ethernet cable NIC • Shared, multipoint • Remote access to router e0
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)
Serial Communications • Terminal serial connectors • DB25 (25 pin) • PC serial connectors • DB25 • DB9
Serial Communications • Cisco supplies RJ45 to DB adapters to connect rollover cables to DB25 and DB9
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
Serial Communications • Required settings for Cisco router con0: • bits per second:9600 • data bits: 8 • parity: none • stop bits: 2 • flow control: none
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!)
Our Lab Setup rtr-B rtr-A rollover rollover patch cable straight-thru PC-A terminal PC-B