It is possible to implement Firewalls in both hardware and software, or a combination of the two. Firewalls are most often used for preventing the unauthorized Internet users which restricts them from accessing private networks connected to the Internet, especially intranets. This is how it works - all messages entering or exiting the intranet go through the firewall, which examines every message and those which do not meet the specified security criteria get blocked.



The features of each of these firewalls technologies module are distinct and are used in a typical business. And likewise each of these firewalls technologies modules requires a different type of hardware ti implement it.

The first product, Cisco IOS Firewall is a technology feature that is a part of Cisco Internet-work Operating System, offers an added benefit since you can use existing hardware at network perimeters to offer true stateful firewalls technologies? module.

Packer Filter Firewall technologies service modules examine and check each packet entering or leaving the network and grants permission or rejects it based on the pre-set user-defined rules. Packet filtering Firewalls technology modules are fairly effective and transparent to users, but the flip side is that it has been observed by the users that sometimes it difficult to configure. Besides, it is also susceptible to IP spoofing.

Application gateway Firewall technologies service modules helps to implement security mechanisms to specific applications, like the FTP and Telnet servers. This has given exemplary results and is found to be very effective, but again the flip side is that it can impose performance degradation.

The third technology modules are the Circuit-level gateway. These Firewalls technologies service module apply security mechanisms when a TCP or UDP connection is established. Once the connection has been made, the packets can flow between the hosts without any further checking.

Cisco Firewall Services Module (FWSM) is a high-speed, integrated firewall module for Cisco Catalyst 6500 switches and Cisco 7600 Series routers which provides the fastest firewalls data rates in the industry. Which works out to 5-Gbps throughput, 100,000 CPS, and 1M concurrent connections. And up to four FWSMs can be installed in a single chassis, which provides scalability to 20 Gbps per chassis. Based on Cisco PIX Firewall technology, the Cisco Firewall Services Module offers large enterprises and service providers the security that is unmatched, reliable and guarantees performance enhancement and improvement.

The Cisco Firewalls Technologies Services Module includes several advanced features which help reduce costs and operational complexity as well as enabling organizations to manage multiple firewalls from the same operating platform. Features like resource manager assist organizations limit the resources allocated to any security context at any time which ensures that one security context does not come in the way of or interfere with another. The transparent firewall feature configures the FWSM to act as a Layer 2 bridging firewall resulting in minimal changes to network topology.

To learn more specific technological facts and configuration it is advised that you visit the website and get all the latest information before making your business decisions. A 24X7 help desk will address all your queries related to Firewalls Technologies and Firewall Services Modules.