Wireguard VPN 无法访问互联网和 LAN

Question

我有一台运行Ubuntu 20.04和wireguard 1.0.20200513-1~20.04.2的服务器。我在手机（Android Samsung S20+）上安装了wireguard应用程序并禁用了WIFI并连接到4G。当 VPN 处于活动状态时，我可以访问服务器，而无法访问家庭网络 (192.168.1.X) 或互联网上的其他内容。服务器具有 10.0.0.1 (VPN) 和 192.168.1.171 (LAN) 接口。电话获得 10.0.0.2 接口。我想我需要设置一条路线。服务器防火墙（ufw 状态）处于非活动状态。任何帮助将非常感激。

/etc/wireguard/wg0.conf

[Interface]
Address = 10.0.0.1/24
Address = <MAC>::1/64
SaveConfig = true    
ListenPort = 51820
PrivateKey = <SERVER_KEY>

[Peer]
PublicKey = <CELL_PUB_KEY>
AllowedIPs = 10.0.0.2/32, 
Endpoint = <EXTERNAL_IP>:8598

客户端配置

Cellphone config
[Interface]
PrivateKey =<CELL_KEY>
Address = 10.0.0.2/24
DNS = 1.1.1.1, 1.0.0.1

[Peer]
PublicKey = <SERVER_PUB_KEY>
AllowedIPs = 10.0.0.0/24, 192.168.1.0/24
Endpoint = <EXTERNAL_IP>:51820

/etc/sysctl.conf

net.ipv4.ip_forward=1
net.ipv6.conf.all.forwarding=1

路线-n

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 enp2s0
10.0.0.0        0.0.0.0         255.255.255.0   U     0      0        0 wg0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 enp2s0
192.168.1.0     0.0.0.0         255.255.255.0   U     100    0        0 enp2s0

在服务器上

ip route get from 10.0.0.2 iif wg0 192.168.1.1
192.168.1.1 from 10.0.0.2 dev enp2s0
    cache iif wg0

编辑-解决方案-wireguard.conf 中需要 PostUp 和 PostDown 行：

[Interface]
Address = 10.0.0.1/24
SaveConfig = true
PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -A FORWARD -o %i -j ACCEPT; iptables -t nat -A POSTROUTING -o enp2s0 -j MASQUERADE
PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -D FORWARD -o %i -j ACCEPT; iptables -t nat -D POSTROUTING -o enp2s0 -j MASQUERADE
ListenPort = 51820
PrivateKey = <MY_KEY>

[Peer]
PublicKey = <MY_PUB_KEY>
AllowedIPs = 10.0.0.2/32

Answer 1

wireguard.conf 中需要 PostUp 和 PostDown 行：

[Interface]
Address = 10.0.0.1/24
SaveConfig = true
PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -A FORWARD -o %i -j ACCEPT; iptables -t nat -A POSTROUTING -o enp2s0 -j MASQUERADE
PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -D FORWARD -o %i -j ACCEPT; iptables -t nat -D POSTROUTING -o enp2s0 -j MASQUERADE
ListenPort = 51820
PrivateKey = <MY_KEY>

[Peer]
PublicKey = <MY_PUB_KEY>
AllowedIPs = 10.0.0.2/32