linux vpn 连接

周海汉/文 2013.09.23

[root@s1 andy]# cat /etc/redhat-release
CentOS release 6.4 (Final)
[root@s1 andy]# uname -a

Linux s1 2.6.32-358.el6.x86_64 #1 SMP Fri Feb 22 00:31:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
更新epel

[root@s1 network-scripts]# rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

[root@s1 andy]# yum install ppp pptp pptp-setup

1. pptpsetup –create –server [–domain ] –username [–password ] [–encrypt] [–start]
2. pptpsetup –delete 删除一个节点

[root@s1 andy]# pptpsetup –create myvpn –server ip –username myuser –password mypasswd –encrypt –start

[root@s1 andy]# route add -net 10.0.0.0/8 gw 10.10.10.244 dev ppp0

[root@s1 andy]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
114.113.96.80 localhost 255.255.255.255 UGH 0 0 0 eth0
localhost * 255.255.255.255 UH 0 0 0 ppp0
192.168.10.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1002 0 0 eth0
10.0.0.0 localhost 255.0.0.0 UG 0 0 0 ppp0
default localhost 0.0.0.0 UG 0 0 0 eth0

[andy@s1 ~]$ ping 10.10.20.11
PING 10.10.20.11 (10.10.20.11) 56(84) bytes of data.
^C
— 10.10.20.11 ping statistics —
4 packets transmitted, 0 received, 100% packet loss, time 3334ms

[root@s1 andy]# route del default

[root@s1 andy]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
114.113.96.80 192.168.10.1 255.255.255.255 UGH 0 0 0 eth0
10.10.10.11 * 255.255.255.255 UH 0 0 0 ppp0
192.168.10.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1002 0 0 eth0
10.0.0.0 10.10.10.244 255.0.0.0 UG 0 0 0 ppp0

[root@s1 andy]# ping 10.10.20.11
PING 10.10.20.11 (10.10.20.11) 56(84) bytes of data.
64 bytes from 10.10.20.11: icmp_seq=1 ttl=63 time=8.25 ms
64 bytes from 10.10.20.11: icmp_seq=2 ttl=63 time=9.34 ms
64 bytes from 10.10.20.11: icmp_seq=3 ttl=63 time=6.80 ms
64 bytes from 10.10.20.11: icmp_seq=4 ttl=63 time=9.96 ms
^C
— 10.10.20.11 ping statistics —
4 packets transmitted, 4 received, 0% packet loss, time 3533ms