This test is designed to see if the VTY configuration is on the device. If there are any extra commands that are not part of the confirmed configuration, they will be removed. This is specifically for configuration items in the confirmed configuration. Anything outside this configuration scope will not have any changes made. The desired […]
Ansible Project: Network Security Audit 2 – VTY Configuration Read More »
This is the first of a series of tests that will create the Network Security Audit. In this first test I am going to create a single playbook that will check if SNMP is configured correctly on a router R1. The desired outcome will be for only a single SNMP read only string to be
Ansible Project: Network Security Audit 1 – SNMP Check Read More »
This is a mini project I created for myself in one of my previous roles. The problem, that it is designed to solve is given an IP address, where is that IP physically located? This is necessary in older network environments that aren’t using tools such as Solarwinds, or newer products like; Cisco ISE, DNA
Ansible Project: IP to Physical Port Mapping Read More »
This lab will expand on the previous vPC configuration lab. I have made a few configuration changes since that lab. HSRP, vPC priority and the STP root is Nexus1. vPC Priority This isn’t like HSRP where it can be set to a higher priority than the default 100 and then that device will always be
Nexus VPC Troubleshooting Read More »
This is to configure vPCs on Nexus 9000s in GNS3. For this lab I will repurpose my Nexus Multicast Lab.I will need to add some extra links between mcast_nexus1 and 2 switches to accommodate the port-channel vPC link and the vPC keepalive link. My topology is going to be a basic topology of four Nexus
Nexus VPC Basic Configuration Read More »
I have added a multicast page to the web app that demonstrates the ability to pull in details for multicast. I originally planned to use this with the Nexus multicast lab, however as TextFSM or Genie do not support the parsing of the command “show ip mroute”. Side note Genie does support the command “show
Scrapli and Flask – Part 7: Multicast Dashboard Read More »
This lab is an extension of the IOS Multicast lab in some ways. This lab will explore the Nexus config and commands. The IOS lab explains the PIM modes and shows how PIM and IGMP work with packet captures. The lab was created quickly using the base config template creator from my Scrapli and Flask
Multicast Lab Nexus: PIM Sparse Read More »
I have added the ability to create a base device template for Cisco IOS, Nexus and IOS-XE.The idea of this is to create a quick way to get a basic configuration to SSH on to the device. For switches, the options for configuration can become quite complex as you can have either a VLAN or
Scrapli and Flask – Part 6: Base Config Device Templates Read More »
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 »