Simulator on Blog - uTIcARdI

Run Arista VM 4.2.2 and later version on EVE(UNL)

Sun, 08 Dec 2019 00:00:00 +0000

One of my friends did his VXLAN practices, he came to me for help because he was unable to start the Arista instance on EVE-NG.

The Arista vm can be started and stuck at:

Issue

I did a search and found a clue in the Arista forum, the instance began to work after changed the CPU number to 2:

IOS command:IP classless

Sat, 09 Feb 2019 00:00:00 +0000

I wrote down this article in 2009-03-13 when I was looking for my first job. Taking this again today as preparation for CCNP.

Topology:

Topology

Configuration

Configured IP addresses on the routers
Note: The subnets of R1’s Loopback1 and R2’s Loopback1 belong to the class A address.
Execute command “ip classless” on both R1 and R2 (The command has been the default since IOS 11.3)

Run ASA9.1 on EVE(UNL)

Fri, 21 Dec 2018 00:00:00 +0000

This blog discusses ASA, not ASAv. Refer to

It’s possible to run ASA9.1 on EVE-NG (UNL, unified network lab), so I did a try:

Image preparation

No, I can’t provide the image to anyone, and I won’t respond to any question about it. Please Refer to following posts for the image file:
Refer to http://www.eve-ng.net/index.php/documentation/images-table, EVE only support hda.qcow2 format disk. Covert your image to qcow2 format before the next step.

MAC OS-Wireshark/VNC与EVE-NG(UNL)的集成

Mon, 17 Dec 2018 00:00:00 +0000

版权声明：以下链接是本文的原文，对本文及原文任何内容、链接的转发、引用请务必标注以下链接:

解决思路：

MAC OX上没有为URL中’capture://’前缀协议关联程序，我们可以编辑系统中已经存在的条目，但按需添加并不简单。

所以需要创建一个关联程序，并由它调用WireShark。此功能可以通过AppleScript实现，并实现关联’capture://’及调用Wireshark.

Mininet-ImportError: customClass

Fri, 20 Jul 2018 00:00:00 +0000

I tried to run miniedit.py after I have mininet installed, unfortunately, I got the error:

ImportError: cannot import name customClass.

Error

Checked the py file: ~/mininet/mininet/util.py and miniedity.py, find nothing is wrong, search on the Internet, got no clue.

Suddenly I found the version is not the version I wanted to install (I forgot to take a screenshot, the version should be 2.2.2daily something).

Run PaloAlto VM on EVE(UNL)/virtualbox/OSX

Thu, 25 Jan 2018 00:00:00 +0000

I tried to run Palo Alto on EVE/Virtualbox/Apple MAC OS and found it fails to start the Palo Alto Firewall. So I decided to find the root cause. (EVE suggests the users use VMware, I used VirtualBox instead because I don’t have a VMware Fusion license)

I went through EVE logs 1st.

System -> System logs -> unl_wrapper.txt

Log

and found the log:

Cisco IPS–Inline VLAN Pair mode

Fri, 24 Mar 2017 00:00:00 +0000

Setup Cisco IPS on EVE

I failed to setup Cisco IPS on EVE(ver 2.0.3-53). I Downloaded Cisco IPS ova file via certcollection (mega)

Followed the [instructions](http://certcollection.org/forum/topic/266792-emulating-ips-on-unl/ http://www.cznetlab.cz/index.php?cat=cciesec&subcat=unlips) for IPS Interfaces.

and met the issue:

Cisco IPS failed to ping anything out of it, I run traffic capture on IPS’s interface, no packet out when I execute the ping command.

Related post on EVE official forum, and the official answer is: This image is corrupted and not working neither on UNL nor EVE

Run NX-OSv 9000 on EVE(UNL)

Sun, 08 Jan 2017 00:00:00 +0000

Refer to how to add NX-OXv 9000 to GNS3

1. Download image files

Here is the NX-OSv9k image file from Cisco (nxosv-final.7.0.3.I5.1.qcow2). Please note that you must have a service contract with Cisco in order to download it.

No I can’t provide the image to anyone.

2. Copy image to eve(UNL)

change file name to ‘hda.qcow2’

copy source file to ‘/opt/unetlab/addons/qemu/nxosv9k-7.0.3.I5.1’

run

/opt/unetlab/wrappers/unl_wrapper -a fixpermissions

3. Add a New node for nxosv9k

Copy the php file to ‘/opt/unetlab/html/templates/’

Dynagen/Dynamips error: netio_desc_create_udp: unable to connect to

Fri, 20 Dec 2013 00:00:00 +0000

OS: CentOS 6.5 x86_64 installed on vmware
Dynamips 0.2.10

There is an error when loading a .net file named as test.net with 100 devices in Dynagen.0.11.0:

netio_desc_create_udp: unable to connect to

I searched on the Internet about this error msg, most of posts shared a method: specified UDP port of dynamips instance in .net file. But it doesn’t work for me.

As I found a Dynagen description in GNS3 website: however Dynagen is still updated and developed for GNS3, this means you can download GNS3 sources, find Dynagen in it.

SNMP simulator installation guide

Wed, 13 Nov 2013 00:00:00 +0000

About SNMP Simulator

The the SNMP Simulator software is intended for testing SNMP Managers against a large number of SNMP Agents that represent a potentially very large network populated with different kinds of SNMP-capable devices.

Refers to its project page for more info.

Why?

With SNMP simulator you can simulate a device by the output of SNMPwalk without considering MIB files.

This article is about how to install SNMP Simulator.

Install Python