# Welcome aboard

{% hint style="warning" %}
该程序仅依赖于内核特性实现，因此请确保使用 6.x 版本的内核

建议使用 [XanMod Kernel](https://xanmod.org/) 内核
{% endhint %}

Hollow 是一款基于 L3 和 L4 的轻量级流量转发程序，与 Iptables 相似，无论监听多少端口都不会受到硬件性能的影响

* 实现动态 NAT

* 支持 IP 和域名

* 支持 TCP 和 UDP

* 支持绑定网卡

* 支持端口段

* 支持获取真实 IP (Transport Layer 4)

* 支持存活检测并 Fallback

* 支持负载均衡

* 支持 TCP Fast Open

* [x] Binding NICs
  * [x] Inbound interface
  * [x] Outbound interface

* [x]  Network address
  * [x] IP
  * [x] Domain name

* [x] Port forwarding
  * [x] Single port
  * [x] Range port

* [x] Get real IP (Transport Layer 4)
  * [x] TRUE\_IP
  * [ ] PROXY PROTOCOL V1
  * [x] PROXY PROTOCOL V2

* [x] load balancing
  * [x] fallback
  * [x] ip\_hash

* [x] Network protocol
  * [x] TCP
  * [x] UDP

* [x] TCP Fast Open


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