Monthly Archive: March 2012

Mar 23

ASA 8.4 Site to Site IPSec VPN – Hairpinning

This post details how to setup Site to Site VPN with ASA 8.4 and hairpinning enabled. This would mean that remote site can not only get access to networks on Main Site but can also access the internet through this site.  This Lab is built on the previous lab however instead of allowing only particular …

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Mar 18

Connect GNS3 Network to Real Networks / Other GNS3 Network

This posts details how to connect GNS3 network to real networks. you can use this post for various scenarios, in fact whatever you can think of. So, say for example you have a physical router connected to your home network and you want to configure VPN between your router and  ASA (or any other device) …

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Mar 18

Windows 7 as Router

Here is quick way to make work Windows 7 as Router.

 

1. Click on Start button and Search for ‘regedit’ which a short name of Register Editor in Windows.

Click on picture below see it in bigger size.

 

2. Once found, click on it to open it.

3. In the newly …

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Mar 15

Cisco MDS 9000 Series AAA Configuration

Here is a sample for Cisco MDS 9000 Series AAA Configuration. There are two parts of it, one is to config ACS Server and Second is to configure the Switch itself. First I am detailing the switch configuration and then the ACS Config.

 

Switch Configuration

We need some basic knowledge of the setup before …

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Mar 15

Cisco MDS 9000 Key Mismatch Error for SAN-OS Version 3.1 – AAA Config

Though 3.1 is quite old version but still maybe in use on Fabric Switches somewhere on your network. While configuring AAA on these switches you specify Shared Secret key which matches with what you had configured on your ACS / Radius Server. The product documentation states that you can any secret key within certain length …

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Mar 13

Telnet to Router Interface from outside

 

This post answers the typical question of how to Telnet to Router Interface from outside. Also it details the configuration steps which enables telnet access to router’s outside interface.

I have setup a small lab on GNS3 to give an exact idea of how an internet facing router is typically

configured and how you can modify …

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Mar 13

ASA 8.3 / 8.4 Double NAT / Source Destination NAT Migration Lab Guide – Lab 1.4

Main Post http://www.xerunetworks.com/2012/03/asa-8384-nat-migration-lab-guide/

This lab is part of the series of LAB which details how migrate NAT configurations from Pre ASA 8.2 version to ASA 8.3/8.4

Lab1.3 Setup

Double NAT/Source Destination NAT

We will start with a fresh LAB, not building on what we had before because the old config/topology was getting too …

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Mar 06

ASA 8.3/8.4 NAT Migration Lab Guide – Lab 1.3

Main Post http://www.xerunetworks.com/2012/03/asa-8384-nat-migration-lab-guide/

This lab is part of the series of LAB which details how migrate NAT configurations from Pre ASA 8.2 version to ASA 8.3/8.4 Lab1.3 Setup

Static NAT, Static Policy NAT, Staic NAT with Port Translation, Many to Many Static NAT

Building on what we had before (Lab 1.2) lets add few …

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Mar 06

ASA 8.3/8.4 NAT Migration Lab Guide – Lab 1.2

Main Post

http://www.xerunetworks.com/2012/03/asa-8384-nat-migration-lab-guide/

This lab is part of the series of LAB which details how migrate NAT configurations from Pre ASA 8.2 version to ASA 8.3/8.4

Lab1.2 Setup

 

Dynamic NAT/PAT, Dynamic NAT/PAT Interface Overload, Dynamic Policy NAT/PAT Combined

Building on what we had before lets add few more subnets to the ISP router. …

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Mar 06

ASA 8.3/8.4 NAT Migration Lab Guide – Lab 1.1

Main Post

http://www.xerunetworks.com/2012/03/asa-8384-nat-migration-lab-guide/

This lab is part of the series of LAB which details how migrate NAT configurations from Pre ASA 8.2 version to ASA 8.3/8.4 Lab1.1 Setup

Dynamic Policy NAT / PAT

Building on what we had before lets add one more router to the picture and consider this as …

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