I had some trouble with this lab. The IOS switches do not seem to be truly layer 3. They have routing functionality and my mcast_switch is taking part in EIGRP. However if I use it as the default gateway for my mcast_client PC on a 172.x.x.x network then the switch is not able to route […]
Multicast Lab IOS15: IGMP Snooping and BSR Auto RP Read More »
I have created an IOS15 Multicast Lab in GNS3. I have used the different PIM modes to investigate and understand how they work in my lab environment. There are some best practices when using multicast in production. The lab is quite simple. We have a multicast server of 172.16.2.200 and a single multicast receiver of
Multicast Lab IOS15: PIM Modes Configurations Read More »
In version2, I have made several changes to continue with this project Added device details page for each device Refresh database button for upto date device details Refresh button for each device Notification if the last refresh of device data is greater than 200 seconds Also added is a device base template cofig generator. More
Scrapli and Flask – Part 5: Additional Device Details Read More »
Now that Scrapli is able to talk to the Cisco devices and then add that data into the database to be displayed in Flask, I have improved on the web app to allow for; Mass adding of devices by IP address Error checking each IP address and notifying the user Code for the this current
Scrapli and Flask – Part 4: Mass Adding of Devices Read More »
In my GNS3 lab for my TACACS Netmiko project I had several devices that I wanted to backup. This is a script I wrote a while ago that is a basic backup. The script may be found on my GitHub There are a number of things wrong with this script which I should address. The
Netmiko Automation Cisco Lab Backup Read More »
I have 9000v in my GNS3 lab. These devices do no like to boot up when reloaded. They sit in a boot loader menu as no autoboot is found. As it’s only a lab this is ok. Just need to direct the switch to boot the correct image, which then boots the switch perfectly fine.
GNS3 Nexus v9 Boot Problems Read More »
This is showing how TACACS in a GNS3 lab can work. It is part of the Netmiko TACACS Project. Let’s get to it… R2 will have TACACS config applied to the OLD_TACACS server. SSH login will come from the Centos Automation server R2 TACACS Config TACACS Server (OLD_TACACS) For the TACACS server I am using
Configuring TACACS Read More »
Problems I needed to update Python in one of my forgotten labs from 3.6 as Netmiko required 3.7 or higher. So a quick Google and what I thought would be a straightforward install.Turns out it wasn’t. CentOS 7 has a bug that complains about the SSL modules in Python not being available. The fix to
Python 3.10.2 Centos 7 Install & Problems Read More »
Licensing the Checkpoint firewalls Once you are able to download the license file, it must be uploaded to the device itself. If you have a separate management and gateway, you must only upload to the management. The gateway will connect and pull the license from the management. You can upload the license file through the
Checkpoint Lab License Read More »
My pfSense firewall has been constantly running for over a year with no problems. However I noticed that the VMs in my lab were not able to connect to the internet. these devices connect via a VPN that is a rule on the pfSense. This was very odd as nothing had changed. Turns out I
pfSense Memory Error Read More »