Tag Archives: Cisco ASA

Setting up a Site-to-Site VPN between Cisco ASA’s Using the CLI

What is a site to site VPN used for?

Site to site VPN tunnels are static tunnels setup between two network devices over the internet to allow multiple locations behind different firewalls access the same internal resources over a secure tunnel across the internet.

How is it different from Remote Access VPN?

Remote access VPN is primarly used for remote workers to access internal resources from outside the network. This type of VPN involves a software client configured on a user’s PC to contact the security gateway (ASA) or other device and establish a secure tunnel dynamically between the security gateway and the user’s software client so that the user’s traffic exiting their PC is tunneled through the VPN setup by the software client on the PC.

Network setup:

In our example we have two Cisco ASA firewalls running 8.3(x) code or below. There are slight command differences in newer code versions so for the Continue reading Setting up a Site-to-Site VPN between Cisco ASA’s Using the CLI

Basic Cisco ASA firewall setup

There are many different firewall options out there, but one of the most prevalent seems to be the Cisco ASA. This post is a basic configuration outline of the general setup of an ASA firewall that has basic connectivity, as well as dynamic and static NAT functions. While there are many different services an ASA can provide, this post centers on an ASA configuration running on the 8.x code version doing only basic functions. This particular setup is on a firewall in routed mode, that is used for NAT/PAT with only an inside and outside interface setup.

The first config settings to enter on an ASA, or most any other Cisco networking devices is the hostname of the device, domain name, and the enable password for logging into privileged exec mode.


config t
hostname LabASA1
domain-name labasa1.yourdomain.com
enable password Secret1 Continue reading Basic Cisco ASA firewall setup