Category Archive: GNS3

Mar 01

ASA 8.3/8.4 NAT Migration Lab Guide

Lets reinvents the wheel. Just to add a bit more fun to NAT, Cisco now a new (third) way to configure NAT on the Cisco devices. Yes, third as its already a bit different for configuring NAT on Rotuers, different on ASA pre 8.2 and here we are with NAT on ASA 8.3/8.4. I am …

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Feb 21

Cisco ASA 8.4 on GNS3

I struggled quite a lot of get ASA 8.4 working on GNS3. I had 8.0(2) working and was helping to test the configurations and VPNs but now wanted to get 8.4 running such that I can prepare myself for new NAT statements and migration from 8.0(2) to 8.4(2).

Here are the steps to get it …

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Feb 11

Site to Site VPN without NAT – L2L IPSec VPN

This guide helps you build a LAN to LAN VPN without NAT applied. This is first part of series where we will be moving from a very simple VPN setup to a highly complex one. In this first part we build this VPN by simulating two site connected via an ISP router. By the end of …

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Dec 20

Site to Site VPN with Internet Access (Hairpinning)

The primary purpose of this Lab is to test site to site VPN and to make sure that users on remote site are able to access internet via main site.  You will see in the post that all of the configuration is similar to a normal L2L config between a router and firewall however all …

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