测试当前网络的 NAT 类型（STUN）

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NatTypeTester

Channel | Status -|- CI | Stun.Net |

RFC supports

Internet Protocol

IPv4
IPv6

Transmission Protocol

UDP
TCP
TLS-over-TCP
DTLS-over-UDP

Preview

RFC3489

![](pic/RFC3489.png)

RFC5389

Binding Test

Checking for UDP Connectivity with the STUN Server

![](pic/RFC5780_4.2.png)

Mapping Behavior

Determining NAT Mapping Behavior

![](pic/RFC5780_4.3.png)

Filtering Behavior

Determining NAT Filtering Behavior

![](pic/RFC5780_4.4.png)

Combining Tests

![](pic/RFC5780_4.5.png)

STUN Server

Docker

docker pull hmbsbige/stunserver
docker run -d --restart=always --net=host --name=stunserver hmbsbige/stunserver --mode full --primaryinterface $IP1 --altinterface $IP2

README.md