My CISCO Journal

In this part we are going to configure Dynamic NAT on our gateway router ( R2). We will following the previously mentioned three steps to achieve this task like:  Labeling the interfaces Configuring the ACL for hosts Implementing the NAT from global config mode So...

Static NAT: static NAT is a one to one mapping of internal addresses with the global IP addresses. In network design, static NAT is best if we are going to host some server inside our network and want it to be accessible from global internet. Some of the terminology of NAT worth remembering: Inside Local: the host address inside the network...

NAT (Network Address translation): In simple words NAT is about IP address translation or conversion. This translation could be for two purposes Translation of Private addresses into Public addresses Translation of internal addresses to avoid duplication or for Topology...

Introduction There is no such thing as a secure network! Once we are connected to some network, we are not 100 % safe! There is no such thing as 100 % security. Each year Million of Dollars are lost to different sorts of network exploits and vulnerabilities. The attackers and attacking technologies have become so sophisticated that at any instant...

! ip subnet-zero ! !--- These are the IKE policies. crypto isakmp policy 1 !--- Defines an Internet Key Exchange (IKE) policy. !--- Use the crypto isakmp policy command !--- in global configuration mode. !--- IKE policies define a set of parameters to be used !--- during the IKE phase I negotiation.  hash md5 authentication pre-share !---...

 Above lab is created in GNS3 to practice almost all the concepts. I have used C2691 and 7200 series routers. To get the topology files, please drop me your email id in the comments box, i will reply as soon as possible. Thanks...