NETGEAR FVL328 manual What is Encapsulating Security Payload ESP?, What is a Security Association?

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FVL328 Cable/DSL ProSafe High-Speed VPN Firewall

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addition, AH does not protect the data’s confidentiality. If data is intercepted and only AH is used, the message contents can be read. ESP protects data confidentiality. For added protection in certain cases, AH and ESP can be used together. In the following table, IP HDR represents the IP header and includes both source and destination IP addresses.

14.What is Encapsulating Security Payload (ESP)?

ESP provides authentication, integrity, and confidentiality, which protect against data tampering and, most importantly, provide message content protection.

IPSec provides an open framework for implementing industry standard algorithms, such as SHA and MD5. The algorithms IPSec uses produce a unique and unforgeable identifier for each packet, which is a data equivalent of a fingerprint. This fingerprint allows the device to determine if a packet has been tampered with. Furthermore, packets that are not authenticated are discarded and not delivered to the intended receiver.

ESP also provides all encryption services in IPSec. Encryption translates a readable message into an unreadable format to hide the message content. The opposite process, called decryption, translates the message content from an unreadable format to a readable message. Encryption/decryption allows only the sender and the authorized receiver to read the data. In addition, ESP has an option to perform authentication, called ESP authentication. Using ESP authentication, ESP provides authentication and integrity for the payload and not for the IP header.

The ESP header is inserted into the packet between the IP header and any subsequent packet contents. However, because ESP encrypts the data, the payload is changed. ESP does not encrypt the ESP header, nor does it encrypt the ESP authentication.

15.What is a Security Association?

A group of security settings related to a specific VPN tunnel. A Security Association (SA) groups together all the necessary settings needed to create a VPN tunnel. Different SAs may be created to connect branch offices, allow secure remote management, and pass unsupported traffic. All SAs require a specified encryption method, IPSec gateway address and destination network address.

16.What is PKI?

Public Key Infrastructure (PKI) is a method by which valid VPN users are authenticated through the use of certificate authorities.

17.What is a Certificate Authority (CA)?

A Certificate Authority is an organization that provides certificates and provides a mechanism for verifying their authenticity. Certificate authentication is a method whereby the computer would have a pre-assigned certificate (any X.503-based certificate, such as Entrust®, VeriSign®, Baltimore, etc.) that is necessary for the IPSec-based authentication algorithm to use for generating keys to exchange between the two VPN devices. It is generally recognized as a more secure method of authentication.

18.What is PPTP?

Point-to-point Tunneling Protocol builds on the functionality of the Point-to-Point protocol (PPP) to provide remote access that can be tunneled though the Internet to a destination site or computer. PPTP encapsulates PPP packets using generic routing encapsulation (GRE) protocol, which gives PPTP the flexibility of handling protocols other than IP. The FVL328 supports pass-through mode for PPTP, but does not support end-point mode.

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Contents Is the FVL328 a router? What is significant about the FVL328?What is Virtual Private Networking? What is VPN end point, and what can it do?What is IKE? What is encryption?What is DES and 3DES? What is IPSec?What is a Certificate Authority CA? What is Encapsulating Security Payload ESP?What is a Security Association? What is PKI?What is network address translation NAT? What is Stateful Packet Inspection SPI?What are Denial of Service DoS attacks? How many users does the FVL328 support? Does the FVL328 filter content this way?Where can I buy this product? What are the types DoS attacks?Mucho EV/PK What if I need multiple-site VPNs?What platforms does the FVL328 support? How easy is it to connect to the Internet using the FVL328?FVL328 supports Auto Uplink. What is Auto Uplink? What about backward compatibility with the FR318 and FV318?Does the FVL328 support IPX or AppleTalk? What is PPPoE?Does the FVL328 support a DMZ? Does the FVL328 support secure remote management?How do I find out more about VPN? Does the FVL328 support any Operating System?

FVL328 specifications

The NETGEAR FVL328 is a high-performance broadband VPN firewall that caters primarily to small and medium-sized businesses. Renowned for its robust security features, the FVL328 is designed to protect sensitive data while providing seamless connectivity for remote users. By leveraging advanced technologies, this firewall ensures secure, reliable access to corporate resources.

One of the standout features of the FVL328 is its built-in virtual private network (VPN) functionality. Supporting up to 20 concurrent VPN connections, the device utilizes both IPSec and L2TP protocols, offering secure tunneling for remote workers. This capability is critical for businesses looking to maintain data integrity while allowing users to access the network from various geographical locations.

The FVL328 integrates a stateful packet inspection (SPI) firewall, which monitors both incoming and outgoing traffic to provide robust protection against unauthorized access and cyber threats. This feature is paramount in today's digital landscape where cyberattacks are increasingly sophisticated. Additionally, the device includes denial of service (DoS) attack protection, further enhancing its security repertoire.

In terms of connectivity, the FVL328 boasts multiple Ethernet ports, allowing for flexible network design and integration with existing infrastructure. The router features four 10/100 Mbps LAN ports and one WAN port, accommodating various networking needs. The automatic IP or static IP configuration options also provide businesses with the flexibility to set up their internet connections quickly.

Another significant aspect of the FVL328 is its user-friendly management interface. With an intuitive web-based GUI, network administrators can easily manage settings, monitor performance, and troubleshoot issues in real time. The device also supports remote management, enabling administrators to configure and manage the network without being physically present.

To complement its advanced technologies, the FVL328 offers various other features, including DHCP server capabilities, Network Address Translation (NAT), and a built-in DynDNS client for dynamic IP management. These characteristics help businesses optimize their network performance while simplifying IP address management.

In summary, the NETGEAR FVL328 is a versatile and secure broadband VPN firewall perfect for businesses that require reliable internet connectivity and robust security measures. Its main features, including advanced VPN support, stateful packet inspection, and an intuitive management interface, make it a valuable asset for any organization's network infrastructure.
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