In order to enable SSH access to Cisco Nexus 1000v (if it’s not enabled yet) followign commands have to be issues from Console or Telnet connection:

Nexus 1000v Switch
login: admin
Password:
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2012, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained in this software are
owned by other third parties and used and distributed under
license. Certain components of this software are licensed under
the GNU General Public License (GPL) version 2.0 or the GNU
Lesser General Public License (LGPL) Version 2.1. A copy of each
such license is available at
http://www.opensource.org/licenses/gpl-2.0.php and
http://www.opensource.org/licenses/lgpl-2.1.php
nexus1000v# conf t
Enter configuration commands, one per line.  End with CNTL/Z.
nexus1000v(config)# ssh key rsa 2048 force
deleting old rsa key.....
generating rsa key(2048 bits).....
.
generated rsa key
nexus1000v(config)# ssh server enable
nexus1000v(config)#

Now you can use SecureCRT or PuTTY to connect to Cisco Nexus vis SSH of course if IP address is configured on the device and it is connected to network 🙂

Whole idea for that article came from real environment. At home I have DrayTek Vigor 2850n as my broadband router (and in fact it is really nice piece of equipment). Same time I’m using some Cisco equipment located in remote Lab for testing purposes. Remote Lab is connected to Intrenet and before to get access to devices and systems located there I was using EzVPN. However, as Lab has Cisco ISR as main router I thought, why not to establish L2L IPsec between my home network and remote Lab. Now, question how to do that. I have DrayTek on one end and Cisco ISR on the other. After few attempts, mis-configurations and troubleshooting it did work quite well in fact. So, here it is.

Here is what needs to be achieved:

Equipment available:

• Cisco ISR 2811 – on the left side of the diagram – internal network 10.255.0.0/24
• DrayTek Vigor 2850n – on the right side of the diagram – internal network 10.130.1.0/24

Goal:

• Establish IPsec VPN Tunnel between Cisco and DrayTek to make communication available between 10.255.0.0/24 and 10.130.1.0/24.

(more…)

Despite all reservations to iPad as a device which might be useful in day-to-day IT Pro activities (was thinking about it more as a toy than tool) I found it really handy after some time. One of main reasons I found iPad cool IT tool was ability to connect to Cisco console port and configure Cisco devices.

Yes, it is possible to have Cisco console cable which connect to iPad and application which allows to configure Cisco via Console from iPad 🙂

(more…)

In one of the previous articles I did quick overview How-to Install vSphere Hypervisor ESXi 5 on VMware Workstation 9. One of the reasons I did that in my Lab environment was to run Cisco Nexus 1000v with NX-OS on it and evaluate this operating system and how it can integrate with other products. So, here is quick overview how to make Cisco Nexus 1000v happen on vSphere ESXi.

(more…)

This is one of those things I always forget when is needed. How to redirect console output to telnet session when debugging something on Cisco device.

So, not to forget it I record it for future reference (I guess from now on I will remember that, but well.. what you do… just Murphy’s law)

From telnet session just issue command shown below, and all debug logs will be redirected to telnet session.

R1#terminal monitor
R1#