Network Configuration Backup with Ansible and Git
The typical way you would perform Network Configuration Backup is by using NCM software such as Solarwinds NCM, Rancid, Oxidized
6 min read
Blog
Setup AWS Network Firewall
What is it?
AWS Network Firewall is a managed firewall service for our VPC. We can use Network Firewall to
5 min read
Ansible with Cisco - Part 2 ios_config module
Cisco IOS configurations use a simple block indent file syntax for segmenting
configuration into sections. Ansible ios_config module provides
8 min read
Ansible with Cisco - Part 1 Installation and basic set-up
Hello readers! I have updated this blog post with new and relevant information. I encourage you to check out the
13 min read
Configuring PIM AnyCast RP with MSDP on Juniper
What problem does AnyCast RP solves?
Having a single active rendezvous point (RP) is a single point of failure.
Anycast
7 min read
Juniper Source-Specific Multicast (SSM)
In the previous articles, we have discussed about PIM Dense Mode and PIM Sparse
Mode. Both protocols use IGMPv2 and
7 min read
Juniper Multicast PIM Sparse Mode
PIM Sparse mode uses an 'explicit join' approach whereas PIM Dense mode uses
'implicit join' approach.
10 min read
Juniper Multicast PIM Dense Mode
Multicast Overview
IP has three fundamental types of addresses: unicast, broadcast, and multicast.
A unicast address is used to send
8 min read
ASA to AWS asymmetric routing - BGP
By default, instances that we launch into an Amazon VPC can't communicate with our on-prem network. We can
1 min read
Configuring Junos OSPF Stub and NSSA Areas
In the previous post, we discussed Type-4 and Type-5 LSAs. This article focuses on Stub and NSSA areas. I highly
9 min read
OSPF Type-4 & Type-5 LSAs - Junos
In the previous posts, we discussed Type-1, Type-2 and Type-3 LSAs. This article
focuses on Type-4 and Type-5 LSAs. This
5 min read
Cisco %Error opening ftp://x.x.x.x (Incorrect Login/Password)
Problem
When attempting to copy file via FTP to a Cisco Switch you see the following
error
cisco-3850#copy ftp
1 min read
Juniper OSPF Route Summarization
In the previous posts, we discussed about Type-1, Type-2 and Type-3 LSAs. This
article focuses on OSPF Route summarization. I
5 min read
OSPF Type-3 Summary LSAs
In the previous post, we discussed about the single-area OSPF and Type-1, Type-2
LSAs. This article focuses on multi-area OSPF
7 min read
Junos single-area OSPF
In this blog post, I will go through Junos Single area OSPF configuration and
verification using Juniper vLAB Sandbox. Interfaces
13 min read
Site-to-site VPN between AWS and Palo Alto (non-BGP)
In this blog post I will show you how to configure site-to-site VPN between AWS VPC and Palo Alto Firewall.
4 min read
Cisco ASA vpn-filter
What are VPN filters?
VPN Filters consist of rules that determine whether to allow or reject tunnelled
data packets that
4 min read
AWS Transit Gateway
AWS Transit Gateway (TGW) is a service that enables customers to connect their
Amazon VPCs and their on-premises networks to
5 min read