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---
icon: edit
date: 2023-02-14
category:
- 系统配置
- 内网穿透
headerDepth: 5
# PPTP/L2TP内外网VPN映射端口及协议
```
PPTP需开放端口：
UDP:1723
L2TP需开放端口：
UDP:500
UDP:4500
UDP:1701
注意：端口映射时应该将协议设置为UDP，否则无法生效