Linux_080：RHEL下使用vpnc连接VPN

运行环境：RHEL 6.5

1. 下载EPEL
下载地址： http://dl.fedoraproject.org/pub/epel/6/i386/
找到epel-release-6-8.noarch.rpm，点击下载。
或者用wget http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm 下载。

2. 安装EPEL
# chmod a+x epel-release-6-8.noarch.rpm
# rpm -ivh epel-release-6-8.noarch.rpm

3. 安装vpnc
# yum clean all
# yum install vpnc

4. 配置vpnc
# vi /etc/vpnc/default.conf
修改后，内容如下：

#IPSec gateway my.vpn.gateway
#IPSec ID my.ipsec.id
#IPSec secret mysecret
# your username goes here:
#Xauth username

IPSec gateway 203.114.244.92
IKE Authmode psk
IPSec ID RH-standard
IPSec secret nodnerip
IKE DH Group dh2
NAT Traversal Mode natt
Xauth username pma

5. 启动/停止vpnc
（1）启动：# vpnc
（2）停止：# vpnc-disconnect

参考文献：
1. http://www.cncentos.com/forum.php?mod=viewthread&tid=1751&extra=