Basically, new and improved software packaging has been introduced into Cisco IOS Software Release 15.0. A single universal image ships with Cisco 1900, 2900, and 3900 Series Integrated Services Routers. This single image contains the full suite of software functions previously available in several feature sets across eight different software images.
Three Cisco IOS Technology Package Licenses (Security, Unified Communications, and Data) are available as add-ons to the base image. Enabling the Security Technology Package, for example, requires purchasing and enabling a new license key. This key unlocks the security capabilities instantly, eliminating the need to download upgrades or to upgrade equipment in remote offices.
The preferred alternative would be to order a security bundle for the Cisco ISR G2, which includes the Security Technology Package License.
In addition to the Security Technology Package License, certain features require software activation Feature Licenses and Subscription Licenses. These features include Cisco IOS Secure Sockets Layer (SSL) VPN, Cisco IOS Intrusion Prevention System (IPS), and Cisco IOS Content Filtering.
You will find the complete information on the link below:
In most cases, Cisco or your Cisco partner will have already activated the licenses ordered at the time of purchase and no Software Claim Certificate is provided. You can determine the licenses activated on your system by issuing the show license feature command on the router command-line interface (CLI) or with a Cisco management application such as Cisco CP or Cisco License Manager (CLM). The router listed seems to come with the security license enable.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...