Autologin auf Cisco-Switch mittels expect

Dieses Script ermöglicht einen automatischen Login auf Cisco-Switche inkl. automatischem „enable“ (sofern die beiden Kennwörter gleich sind).

neue bessere Version von Markus Frosch, ohne Umwege über Bash ;)

#!/usr/bin/expect -f
#######################################
## Update Router Config
#######################################
set host [lindex $argv 0]
set pw XXXX
trap exit {SIGINT SIGTERM}
spawn telnet $host

expect {
"Username: " {
        send "root\r"
	exp_continue
}
"Password: " {
        send "$pw\r"
}
timeout {
        send_user "\n\ntimeout...\n"
        exit 1
}
}

expect {
"% " {
        send_user "\n\nlogin failed.\n"
        exit 1
}
">" {  
        send "enable\r"
}
}

expect {
"Password: " {
        send "$pw\r"
}
timeout {
        send_user "\n\ntimeout...\n"
        exit 1
}
}

expect {
"% " {
        send_user "\n\nenable failed.\n"
        exit 1
}
"#" {
	send_user "\nlogged in...\n"
	send "\n"
}
}

interact

#!/bin/sh
 
# Passwort
PASS="passwort"
PROGDIR=`dirname $0`
 
rm -f $PROGDIR/login.expect
touch $PROGDIR/login.expect
chmod u+x $PROGDIR/login.expect
 
cat << EOF > $PROGDIR/login.expect
#!/usr/bin/expect
spawn telnet $1
expect {
  "Password:" {
    send "$PASS\r"
    exp_continue
  }
  "Name:" {
    send "enable\r"
    exp_continue
  }
  "#" {
    interact
  }
  "% Bad passwords" {
    send_user "invalid password or account\n"
    exit
  }
  timeout {
    send_user "connection timed out\n"
    exit
  }
  eof {
    send_user "connection to $host failed: $expect_out(buffer)"
    exit
  }
}
EOF
 
$PROGDIR/login.expect
rm -f $PROGDIR/login.expect

Aufruf mit „cisco.sh catalyst1.mydomain.de“ oder via IP.