Linksys WRVS4400N manual Firewall Tab, Basic Settings

Models: WRVS4400N

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Wireless-N Gigabit Security Router with VPN

Firewall Tab

The Firewall Tab allows you to configure software security features like SPI (Stateful Packet Inspection) Firewall,

IP based Access List, restriction LAN users on Internet (WAN port) access, and NAPT (Network Address Port

Translation) Settings (only works when NAT is enabled) to limited services to specific ports.

Note that for WAN traffic, NAPT settings are applied first, then it will pass the SPI Firewall settings, followed by IP based Access List (which requires more CPU power).

Basic Settings

Firewall: SPI (Stateful Packet Inspection) Firewall, when you enable this feature, the Router will perform deep packet inspection on all the traffic going through the Router and drop the packets that do not follow the pre-defined protocol behavior. The default is Enable.

DoS Protection: When enabled, the Router will prevent DoS (Denial of Service) attacks coming in from the

Internet. DOS attacks are making your Router’s CPU busy such that it cannot provide services to regular traffic.Figure 6-29: Firewall - Basic Settings The default Is Enable.

Block WAN Request: When enabled, the Router will ignore PING Request from the Internet so it seems to be hidden. The default is Enable.

Remote Management: When enabled, the Router will allow the Web-based Utility to be accessed from the

Internet. The default is Disable.

HTTPS: This option is only useful when Remote Management is enabled. When enabled, the Web based Utility can be accessed only through HTTPS session from WAN side instead of regular HTTP. This will have your remote Web session protected by SSL encryption algorithms. The default is Enable.

Multicast Pass-through: When enabled, the Router will allow IP Multicast traffic to come in from the Internet.

The default is Disable.

MTU: Set your data packet maximum size at the IP layer manually or automatically from negotiation. The maximum size on Ethernet is 1500 bytes. The default is auto.

Chapter 6: Setting Up and Configuring the Router

47

Firewall Tab

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Linksys WRVS4400N manual Firewall Tab, Basic Settings