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Resolve an iChat login issue with certain Netgear routers
Authored by: allentown on Feb 02, '09 03:16:34AM

Not entirely true. You are still largely protected by NAT as well. SPI logs packet requests, and generally only lets in the ones that are as a result of some action on your end. So you ask for something, and SPI logs it, then knows to let something get a reply. In general at least.

If you have some virus or other junk on your machine, SPI is not going to help you, since you make the request out anyway.

SPI can help you from getting DDoS'd, but really, how often is your local machine going to get that? Turning off SPI is, more or less, in my strong opinion, very safe, and well worth it since it is complicated to implement right, and to date, most routers do not, as we are seeing now.

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