SPI, or "stateful packet inspection," is an essential security component of the firewall in the Netgear router. It blocks unsolicited incoming traffic, e.g., "hackers," and it examines traffic from applications on the computer for suspicious activity. One disadvantage of SPI, however, is that it slows down the processing of traffic on a hardware device, such as a router. Though SPI is a valuable security measure and the slowdown in traffic is unnoticeable, Netgear includes an option to disable SPI on most of its router offerings.
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Open another Internet browser session window. Type "http://www.routerlogin.net" into the address bar and press the "Enter" key to access the Netgear router's web-based interface. Or, type "192.168.0.1" or "192.168.1.1."
Type "admin" for the user name and "password" for the password. Click the "OK" button to log into the Netgear router and see the main menu.
Click on the "WAN Setup" link under the "Advanced" section in the left pane.
Click a check mark into the box next to "Disable SPI Firewall."
Click the "Apply" button to turn off stateful packet inspection on the Netgear router. Click the "Logout" button at the bottom of the main menu to exit out the web-based interface.
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