NXHX PPTP 手動設定

修改自 PPTP Client Debian HOWTO by James Cameron 26th May 2008 These are instructions for installing PPTP Client on Debian GNU/Linux.

Contents:

• 安裝 Ubuntu pptp client

apt-get install pptp-linux

• 手動設定pptp連線

Configuration, by hand

1. obtain from your PPTP Server administrator:

• the IP address or host name of the server ($SERVER),
• the name you wish to use to refer to the tunnel ($TUNNEL),
• the authentication domain name ($DOMAIN),
• the username you are to use ($USERNAME),
• the password you are to use ($PASSWORD),
• whether encryption is required.

基本上要開始之前要對 VPN SERVER 有所了解，最起碼要知道ServerIP, Domain, Username, Password, 最容易告不清楚就是 “加密”與”壓縮” 以 NXHX公司為例

• $SERVER = 140.110.22.100
• $TUNNEL = nchc 自己定義就好
• $DOMAIN = 沒有
• $USERNAME = ….
• $PASSWORD = ….
• 以 pap 認証，允許不加密資料…

2. 建立 or 修改 /etc/ppp/options.pptp:

預設是 lock noauth nobsdcomp nodeflate refuse-pap refuse-chap refuse-eap refuse mschap ，而NXHX因為要用到PAP，所以把 refuse-pap 給住解掉。

# We won’t do PAP, EAP, CHAP, or MSCHAP, but we will accept MSCHAP-V2
# (you may need to remove these refusals if the server is not using MPPE)
#refuse-pap
refuse-eap
refuse-chap
refuse-mschap
….

3. 建立 or 修改 /etc/ppp/pap-secrets: 因為我們用的是pap認証，所以要改這個檔案，也時候也可能要改的檔案是 chap-secrets…所以要看你的認証方式而定

$USERNAME PPTP $PASSWORD *

4. 建立 /etc/ppp/peers/$TUNNEL:

   vi /etc/ppp/peers/nchc
   pty “pptp 140.110.22.100 –nolaunchpppd”
   name $USERNAME
   remotename PPTP
   file /etc/ppp/options.pptp
   ipparam nchc
   

Note: if you do not need MPPE support, then remove the require-mppe-128 option from this file and /etc/ppp/options.pptp. 原本範例有 require-mppe-128 因為我們不需要 所以拿掉了

5. 用 pon 來建立連線吧:

   pon nchc
   
   ifconfig 可以找到 ppp0
   ppp0 Link encap:Point-to-Point Protocol
   inet addr:140.110.35.193 P-t-P:140.110.35.192 Mask:….
   

6. 斷線:

   poff nchc
   

7. to set up routing: 這邊希望連線後預設路由就是VPN出去

   route add default gw 140.110.35.192
   

or

vi /etc/ppp/ip-up.d/nchc

#!/bin/sh
if [ "${PPP_IPPARAM}" = "nchc" ]; then
    /sbin/route add -net 140.x.0.0/16   dev ${IFNAME}
    /sbin/route add -net 2xx.1xx.1xx.0/24 dev ${IFNAME}
fi

8. 在NXHX還要改 DNS 140.110.16.1

9. 開機時啟動 edit 2010/09/29

   vi /etc/network/interfaces
   auto ppp0
   iface ppp0 inet ppp
   provider nchc
   

這樣就大功告成啦！

10 . option 需要視情況調整

#text
passive
connect-delay 10000
#lcp-echo-interval 30
#lcp-echo-failure 4
避免斷線…

更多細節參考

​http://pptpclient.sourceforge.net/howto-debian.phtml