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Description
VPNs: A Beginner's GuideA comprehensive introduction to VPNs and networking basics, this book provides readers with a solid foundation of networking basics and the understanding necessary for learning the complexities of the VPN technology that follows. It takes the reader through the actual steps involved in provisioning the hardware, software and set up with the provider of services for Internet access and communications carriers, thus leading to a comprehensive
A comprehensive introduction to VPNs and networking basics, this book provides readers with a solid foundation of networking basics and the understanding necessary for learning the complexities of the VPN technology that follows. It takes the reader through the actual steps involved in provisioning the hardware, software and set-up with the provider of services for Internet access and communications carriers, thus leading to a comprehensive understanding of all VPN protocols. There is also detailed information about securing VPNs, including information on intrusion detection. Readers gain an understanding of security, encryption, encapsulation, key management and intrusion detection systems, all necessary for a secure network. Networking blueprints for 4 different types of VPNs, including IPSec and PPPT are also included.Binding Type: Paperback
Publisher: McGraw-Hill/Osborne Media
Published: 12/14/2001
ISBN: 9780072191813
Pages: 592
Weight: 2.25lbs
Size: 9.36h x 7.34w x 1.30d
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4.4 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Delivered on What They Promised
Bought an iRobot Roomba i4+ about 1 1/2 years ago and saw this as an option for a protection plan. I was skeptical, as I know that plans similar to this one can be filled with contractual Loop holes that do not benefit the buyer.
HOWEVER, this one is legitimate and came through for me when my vacuum was essentially falling apart…as I was reimbursed the full amount that I paid for it.
I just purchased another iRobot, along with the same protection plan……so, from my experience, I highly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2024
★★★★★ 5
The pads worked well.
Size: for Saros 10R
I feel comfortable that it will work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
Really good to have
Size: for Q S5V
After owning a wireless vacuum mop I knew it was good to have extra parts like this on hand so I ordered these when I ordered the robot vacuum. Oh boy... when my vacuum did the dreaded run through dog poop I was very happy to be able to just throw the other parts away and replace them on the spot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Exactly what we needed
Size: for Q7 M5+
This is exactly what we needed for our vacuum.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 4
Great Value and Perfect Fit for My Qrevo
Size: for Q S5V
This 34‑piece replacement set has been a great buy for my Roborock Qrevo. All the parts fit perfectly, install easily, and work just like the originals. The brushes and filters snapped right into place, and the mop pads feel thick and durable. After replacing everything, my vacuum immediately picked up more dust and debris.
One thing to note: the kit didn’t include any instructions for the scent packs, so I placed them in the dust bag—hopefully that’s the correct spot. It would’ve been helpful to have a quick guide included.
Overall, the amount of pieces you get for the price is a fantastic value, and it’s great having plenty of backups on hand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
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