Category Archives: Documentation

Setting Up WireGuard on Oracle Cloud: Overcoming NAT and Routing Challenges

By | April 29, 2023

WireGuard® is an open-source VPN solution that is known for its simplicity, speed, and security. While setting up a WireGuard instance on most cloud providers is relatively straightforward, Oracle Cloud Infrastructure presents some unique challenges. This blog post will help you navigate those challenges and guide you through configuring a WireGuard instance on Oracle Cloud. We’ll discuss a… Read More »

Dante in Oracle Cloud

By | January 18, 2022

Here’s a step-by-step guide on how to create a personal, cost-free SOCKS5 anonymous proxy with support for UDP ASSOCIATE (as specified in RFC1928) in Oracle Cloud. I documented these steps for myself while setting up the SOCKS5 proxy for the purpose of experimenting with forwarding WireGuard handshake packets over SOCKS5. However, I later decided to share this information… Read More »

“Failed to install WinpkFilter NDIS LWF driver with error 0x800700b7” or critical value of driver customization

By | January 22, 2018

One of our customers has recently reported that WinpkFilter installation has failed with error code 0x800700b7. This was the first report mentioning such error code, and we have spent some time to research the issue at a customer side. Such behavior seems to be worth mentioning in a dedicated post. 0x800700b7 error code can be decoded as ERROR_ALREADY_EXISTS.… Read More »

Windows Packet Filter and Gigabit networks

By | April 6, 2016

There is a very popular and important question about Windows Packet Filter: “Can I handle Gigabit traffic in WinpkFilter user-mode application without noticeable performance degradation?”. I was asked rather frequently and usually, my answer starts with “that depends…” followed up by various performance related considerations and ends with a sentence “if you need maximum possible performance then consider… Read More »

How to customize and build Windows Packet Filter drivers

By | March 1, 2016

Venturing into Windows driver development can be an intimidating endeavor, especially if it’s your first time. You may find yourself asking, “Where do I start?” Comprehensive tutorials abound on creating drivers for the latest versions of Windows, but guidance on doing so for legacy systems can be more challenging to locate. This guide aims to provide clear, step-by-step… Read More »