pythonで、cisco機器へSSHログインしてみました。
netmikoを利用するので、事前にインポートが必要。接続デバイスの自動判定機能が付いています。なかなか便利。内部的にparamiko呼び出してますので、netmikoが上位アプリな位置づけになるようです。
- 自動判定で、ssh接続し、sh ver結果出力、あわせて、自動判定結果のデバイスタイプを出力
#netmiko を利用
from netmiko.ssh_autodetect import SSHDetect
from netmiko.ssh_dispatcher import ConnectHandler
# 接続パラメータを設定 device_typeを autodetect とする
remote_device = {'device_type': 'autodetect',
'host': '10.10.20.181',
'username': 'cisco',
'password': 'cisco'}
# デバイスへ接続
connection = ConnectHandler(**remote_device)
# コマンド実行と結果の出力
print(connection.send_command('show version'))
# 切断
connection.disconnect()
# 参考 デバイスタイプの自動判定結果を確認
work = SSHDetect(**remote_device)
match_device_type = work.autodetect()
# 自動検出結果のデバッグ出力
print("device_type: " + match_device_type)Cisco IOS XE Software, Version 17.03.02
Cisco IOS Software [Amsterdam], Virtual XE Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 17.3.2, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2020 by Cisco Systems, Inc.
Compiled Sat 31-Oct-20 13:16 by mcpre
Cisco IOS-XE software, Copyright (c) 2005-2020 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.
ROM: IOS-XE ROMMON
internet-rtr01 uptime is 3 hours, 25 minutes
Uptime for this control processor is 3 hours, 27 minutes
System returned to ROM by reload
System image file is "bootflash:packages.conf"
Last reload reason: factory-reset
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
License Level: ax
License Type: N/A(Smart License Enabled)
Next reload license Level: ax
The current throughput level is 1000 kbps
Smart Licensing Status: UNREGISTERED/No Licenses in Use
cisco CSR1000V (VXE) processor (revision VXE) with 2070983K/3075K bytes of memory.
Processor board ID 9DMUMWG77SM
Router operating mode: Autonomous
4 Gigabit Ethernet interfaces
32768K bytes of non-volatile configuration memory.
3978236K bytes of physical memory.
6188032K bytes of virtual hard disk at bootflash:.
Configuration register is 0x2102
device_type: cisco_ios
PS C:\winpython> 自動判定の動作ですが、ログインしてみて、show version 結果を読み込みデバイス判定をしています。機器によっては必ずしもコマンドが同じというわけではありませんが、考え方は同じ。と、いうわけで、判定にログインを伴いますので、上記を実行するとログイン履歴は2件記録されます。
netmikoのライブラリの解説はこちら
コメント