1.安装软件包

opkg update

opkg install openvpn-openssl openvpn-easy-rsa kmod-tun

2.创建秘钥

清空key目录

clean-all

创建公钥

build-ca

创建dh

build-dh

创建服务器密钥

build-key-server server

创建客户端密钥

build-key Jimmy

创建pkcs12格式的客户端密钥

build-key-pkcs12 Jimmy

复制公钥，服务器密钥，dh到openvpn目录

cd /etc/easy-rsa/keys

cp ca.crt ca.key dh2048.pem server.crt server.key /etc/openvpn/