OpenVPN莫名其妙断线的问题及其解决.docx
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OpenVPN莫名其妙断线的问题及其解决.docx
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OpenVPN莫名其妙断线的问题及其解决
OpenVPN莫名其妙断线的问题及其解决
1.问题
不得不说,这是一个OpenVPN的问题,该问题几乎每个使用OpenVPN的人都碰到过,也有很多人在网上发问,然而一直都没有人能给出解决办法,甚至很多帖子上表示因为这个问题而放弃了使用OpenVPN。
说实话,我面临这个问题已经两年有余,自从第一次接触OpenVPN,这个问题就一直困扰着我,去过国外各大论坛也没有找到满意的结果。
这几天终于有点闲暇,我决定自己去摸索一下,要感公司能给我提供一个环境!
最终,我取得了突破性的进展,还是那句话,我把这个结果贴了出来,就是为了以后人们再面临这个问题时可以多一个可选的答案。
顺便说一下,并不能说明网上就没人解决过这个问题,因为我所能看到并理解的,只有中文或者英文的帖子或者文章,虽然日文的也在我老婆的帮忙翻译下看过一些,但是还有大量的德文,意大利文,文等作为母语的人写出的东西我无法找到并且理解它,因此为了通用性,我本应该用英文来写这篇文章,然而英文水平太垃圾,怕那样连中国人都不能理解了...
问题是这样的,OpenVPN在跨越公网上连接时,会莫名其妙的时不时断开,但不经常,也不绝对!
由于大部分人使用Windows版本的作为OpenVPN客户端,因此起初一直一为是Windows本身的问题,然而当我用Linux客户端连接时,还是一样,这就是说,很大程度上冤枉了Windows(也并不是完全冤枉,起码Linux就没有DHCP租约的问题),于是既然有了环境,那就折腾一番,因此又是一个惊魂48小时。
以下是在客户端断开时服务端的日志(频繁的断开就会有频繁的日志,现在仅仅截取一段):
2013-07-2416:
53:
15MULTI:
REAPrange208->224
...
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[5]1234
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[1]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4WRITE[114]to218.242.253.131:
18014:
P_CONTROL_V1kid=0[]pid=5DATAlen=100
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[6]5234
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[2]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4WRITE[114]to218.242.253.131:
18014:
P_CONTROL_V1kid=0[]pid=6DATAlen=100
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[7]5634
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[3]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4WRITE[114]to218.242.253.131:
18014:
P_CONTROL_V1kid=0[]pid=7DATAlen=100
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[8]5674
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[4]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4WRITE[114]to218.242.253.131:
18014:
P_CONTROL_V1kid=0[]pid=8DATAlen=100
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[9]5678
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[5]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4WRITE[114]to218.242.253.131:
18014:
P_CONTROL_V1kid=0[]pid=9DATAlen=100
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[10]9678
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[6]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4WRITE[114]to218.242.253.131:
18014:
P_CONTROL_V1kid=0[]pid=10DATAlen=100
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[11]91078
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[7]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4WRITE[114]to218.242.253.131:
18014:
P_CONTROL_V1kid=0[]pid=11DATAlen=100
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[12]910118
2013-07-2416:
53:
16GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[9]
2013-07-2416:
53:
16Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[12]10118
2013-07-2416:
53:
17MULTI:
REAPrange240->256
2013-07-2416:
53:
17GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
17Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[10]
2013-07-2416:
53:
17Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[12]118
2013-07-2416:
53:
17GETINSTBYREAL:
218.242.253.131:
18014[succeeded]
2013-07-2416:
53:
17Test证书/218.242.253.131:
18014UDPv4READ[22]from218.242.253.131:
18014:
P_ACK_V1kid=0[11]
2013-07-2416:
53:
17Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[12]8
2013-07-2416:
53:
18MULTI:
REAPrange0->16
2013-07-2416:
53:
18Test证书/218.242.253.131:
18014TLS:
tls_pre_encrypt:
key_id=0
2013-07-2416:
53:
18Test证书/218.242.253.131:
18014SENTPING
2013-07-2416:
53:
18Test证书/218.242.253.131:
18014ACKoutputsequencebroken:
[12]8
2013-07-2416:
53:
18Test证书/218.242.253.131:
18014UDPv4WRITE[53]to218.242.
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