[Multiple Servers] Tunneling methods such as 6to4, GRE6, and IP6IP6, Geneve provide solutions for transmitting IPv6 packets over existing IPv4 or IPv6 networks. These methods allow communication between networks that use different IP versions.

Using MATLAB, let's look into Divorce Rates and the connection with Big 5 Personality Assessments

🌚 🌍 🌝 GeoIP 规则文件加强版，同时支持定制 V2Ray dat 格式路由规则文件 geoip.dat 和 MaxMind mmdb 格式文件 Country.mmdb。Enhanced edition of GeoIP files for V2Ray, Xray-core, Clash, Trojan-Go, Leaf and Hysteria, with replaced CN IPv4 CIDR available from ipip.net, appended CIDR lists and more.

Sends outgoing IPIP packets back to the client directly instead of back through the IPIP tunnel/forwarding server. Uses TC egress filter for fast packet processing.

Self-build IPv6-in-IPv4 Tunnel Server --- 自建IPv6-in-IPv4隧道服务器

🐈️ 纯真数据库 IPIP.net 格式版，Make qqwry.ipdb Great Again!!!

An offline tool for querying IP geographic information and CDN provider. 一个查询IP地理信息和CDN服务提供商的离线终端工具.

IPv4 prefixes of China mainland.

A neat packet processing/forwarding program I made for a gaming community I used to be a part of. Includes many features.

TC programs aimed to add support for multiple remote hosts in IPIP tunnels.

IP geolocation databases tool and library. IP 地理位置数据库工具。

🌏自定义 GeoIP 规则文件，Fork from Loyalsoldier/geoip

The original DVMRP (dynamic multicast routing) implementation for UNIX

*WP-IPIP* is a WordPress plugin that tells you where the comment come from.

Another nginx http geoip module by ipdb

Auth extension and configuration utility for IPIP-over-UDP: Lightweight non-encrypted low-overhead L3 IPv4 tunnel natively supported by Linux

Get the IP location and info

ipip.net, qqwry ip database query library

YADDAT: Yet Another D&D Alignment Test

ipstatistics is a script based on the ipip library that is used to quickly filter the ip list.