Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

LAN & WAN Reviews

The Product

One thing I need to make clear up front is that the AlphaShield is not a NAT router. The key consequence of this is that it does not provide Internet sharing. Instead, think of it as providing, for all intents and purposes, the same protection as provided by a NAT - or more accurately NAT + SPI (Stateful Packet Inspection) router - but without requiring, or allowing, any sort of configuration of that protection.

AlphaShield's marketing material refers to three technologies that the product uses to work its Internet security magic - AlphaGAP, IP Stealth and RPA (Real-time Packet Authorization). The first just refers to the box's ability to completely stop data flow between its Internet and host computer ports, just as if you physically disconnected your computer from your broadband modem.

IP Stealth means that AlphaShield will discard any ICMP messages it receives from pings or traceroutes, just as routers do when you enable "block WAN ping response" or similarly-named capabilities. Either way, scans directed at your IP address assigned by your ISP won't receive any response and just continue looking for their next victim.

The RPA explanation in the white paper provided as part of my review material (but not available for download from the AlphaShield website) is the fuzziest of the three and appears to be the AlphaShield's real "secret sauce". But though the exact mechanics of RPA may be different, the bottom line is that it provides essentially the same level of "firewall" protection as provided by a NAT router.

The AlphaShield's packaging makes a good first impression with an informative product box and compact and nicely finished silver and charcoal plastic enclosure. Figure 1 shows that Outbound, Connection and Inbound LEDs grace the font panel - and provide the only indication of the AlphaShield's operating state. There is no software interface to view or configure, heck, the AlphaShield doesn't even have a MAC address, let alone an IP address!

AlphaShield front view
Figure 1: AlphaShield front view

More LAN & WAN

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

Split-horizon DNS, split-view DNS, split-brain DNS, or split DNS is the facility of a DNS implementation to provide different sets of DNS information ...
Hi,Is it possible to do inbox replace/upgrade to any newer QNAP or any other DIY NAS version?I would like to replace the h/w with the better one and u...
Hello, been reading for a long time, got 6x RT-AC68U with 384.17No problems but an annoying issue, so lets jump in at the deep end. 4g providers are m...
Since today I get the "curl: (60) SSL certificate problem: certificate has expired" error on one site:Code: # curl -v
I'm in a special situation and any idea might help me a lot.I have an EA2750 router (I don't remember the exact firmware version, but it's one of the ...

Don't Miss These

  • 1
  • 2
  • 3