Cisco 2511

Remote Serial Console HOWTO
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# E.2. Cisco 2511

The basic configuration for a Cisco 2511 access server is shown in Figure E-1. A similar configuration will work for other Cisco access servers. Cisco has excellent documentation at its web site; start by finding the correct Configuration guide.

A current maintenance contract with Cisco or a reseller is required to download software updates. This contract also includes the provision of ROMs required for flash memory upgrades. In most jurisdictions Cisco software licenses are not transferrable, so if you purcashed the access server on the second-hand market you will need to purchase a software license from Cisco or a reseller.

Figure E-1. Basic configuration for Cisco 2511 terminal server to Linux PC

    interface Async1
     description To Linux computer
     ip unnumbered Loopback0
     async mode interactive
     no peer default ip address

    line 1
     location To Linux PC
     session-timeout 30
     no exec
     login
     modem InOut
     terminal-type vt100
     special-character-bits 8
     transport preferred none
     transport input telnet
     telnet break-on-ip
     telnet ip-on-break
     stopbits 1
     flowcontrol hardware

    line vty 0 4
     location Network
     password PASSWORD
     login local
     terminal-type vt100
     transport preferred none
     transport output telnet

There is a port of Linux to the Cisco 2500 series of routers. At the time of writing it did did not support the asycnhronous ports on the Cisco 2511. The attractiveness of running Linux instead of running Cisco's IOS is that Linux can support SSH. At the time of writing Cisco were yet to release SSH on the Cisco 2500 series of routers, although a unofficial beta version has been seen.

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