NAT – Router Switch Blog

Steps to Configure Static NAT with Route-maps

Posted on August 12, 2013 by RouterSwitch Tech | 0 Comments

A static NAT (Network Address Translation) configuration creates a simple translation entry in the NAT table, translating a particular local address to a specific global address and vice versa. These entries always remain in the table and are removed only if…

Configuring Static NAT on a Cisco ASA Security Appliance

Posted on April 2, 2013 by RouterSwitch Tech | 0 Comments

Two of the most common forms of network address translation (NAT) are dynamic port address translation (PAT) and static NAT. PAT is the many-to-one form of NAT implemented in many small office and home networks where many internal hosts, typically…

How to Configure Basic NAT with Overloading?

Posted on January 17, 2013 by RouterSwitch Tech | 0 Comments

Here’s a lab that might be helpful for those working towards the CCNA examination. We have a simple topology consisting of three routers. R8 will simply be used as a host on our “internal” network and R7 will be used…

How to Configure Static NAT for Inbound Connections?

Posted on January 16, 2013 by RouterSwitch Tech | 0 Comments

Someone recently asked me how to configure Network Address Translation (NAT) so that computers on the Internet could access his internal Web and mail server through his Cisco router. This requires configuring a static NAT translation between the dedicated public…

What’s the Order of Operations for Cisco IOS?

Posted on January 15, 2013 by RouterSwitch Tech | 0 Comments

“What’s the order in which IOS processes the running config between the following items? ACL Distrubute list, Route map Routing Protocol Routing What im looking for is the packet flow when it arrives thru an interface for better understanding? Does…

How to Set up NAT Using the Cisco IOS?

Posted on January 9, 2013 by RouterSwitch Tech | 0 Comments

Network address translation (NAT) is one of those rare information technology buzzwords that do exactly what its name implies. In this case, it translates one network address into another network address. The most popular use for NAT is to connect…

Example Show: How to Configure a Cisco ASA 5540 for Video Conferencing for Polycom Device?

Posted on November 8, 2012 by RouterSwitch Tech | 0 Comments

Here we were asked to configure the Polycom device to have video conferencing with external world. Our Polycom device is behind a Cisco ASA 5540 firewall as shown in the below network layout. In order to permit H.323 video conferencing…

Eight Commands on a Cisco ASA Security Appliance You Should Know

Posted on June 5, 2012 by RouterSwitch Tech | 0 Comments

Eight commands on Cisco ASA security appliance you should know first. There are literally thousands of commands and sub-commands available to configure a Cisco security appliance. However, there are just a few commands required to configure basic functionality on the appliance. …

How to Configure Cisco PIX Firewall?

Posted on May 31, 2012 by RouterSwitch Tech | 0 Comments

How to configure a new PIX firewall? You will need to will configure passwords, IP addresses, network address translation (NAT) and basic firewall rules. If you have a new PIX firewall that has never been configured, it will need to…