![]() I recommend you analyse your options and pick the least painful one satisfying your security and performance requirements.Established in the year 1997, at Delhi ( India), we, “ Multilink Computers Pvt. One platforms with crypto acceleration IPsec can be even faster because it can be configured ciphers and modes that can be offloaded hardware, but it’s a massive pain in the posterior to deploy and operate especially across multiple vendors. If you feel comfortable managing network appliances like MikroTik routers you’ll find that the in-kernel WireGuard implementation available on all platforms since RouterOS v7 is a lot faster and can make use of multiple cores with a single tunnel interface, but you loose the ZeroTier automatic meshing and centralised control plane. ![]() You don’t have to terminate high bandwidth VPNs on a network appliance. The nice thing about ZeroTier is that it supports all common desktop operating systems (Windows, macOS, most Linux distros and even *BSDs) and requires local configuration (you only have to join correct set of networks). On a fast desktop you can push more than 1Gb/s through it with brute force, but the slower CPU cores used in low power routers lack the single thread CPU throughput to keep up with a desktop. These constraints limit how efficient the current implementation of ZeroTier can be. ![]() The frames are encrypted/decrypted in userspace and tunneled over UDP sockets which again require one system per packet. Moving a Ethernet frames through the tap interfaces requires one system call per frame. ![]() Each tap interface appears as an Ethernet interfaces to the kernel network stack. ![]() On Linux and *BSD it’s implemented using the tap(4) pseuo-interface. ZeroTier can be very fast for what it is: a portable Layer 2 VPN over UDP implemented in userspace. ![]()
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