我无法使用预共享密钥让任何 L2TP + IPSEC 客户端在 Ubuntu 14.04 上工作,对吗?

hoo*_*enz 5 vpn 14.04

这么简单的问题,为什么上班这么难?

这似乎令人难以置信,但我还没有找到一个真正有效的解决方案。这就是为什么我实际上再次问这个问题。

此处或其他任何地方对类似问题的建议答案均无效,不,没有。你会注意到他们都没有接受答案。所以这个问题不断被问到。我们能结束这种疯狂吗?

我真的很高兴这个问题成为社区维基,但我不知道该怎么做。我只想知道为了整个 Ubuntu 社区的利益,我们着手进行设置。一劳永逸。

这是一个如此通用的协议,但 Ubuntu 似乎严重滞后于对它的支持。即使它在 Windows 和 OSX 上开箱即用。看来我们必须在 Ubuntu 中跳起来。

有人可以分享您个人如何使用预共享密钥使 L2TP + IPSec 工作的秘密吗?我认为一个可靠的工作答案会让许多 Ubuntu 用户在晚上休息:)

干杯。


这是我尝试过的:

1. 强天鹅

apt-get install strongswan network-manager-strongswan
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好吧,那太好了,UI 似乎不允许预共享密钥?!?!

2.网络管理器-l2tp

https://launchpad.net/~seriy-pr/+archive/ubuntu/network-manager-l2tp
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这看起来很有希望,但不起作用。我收到以下错误。除此之外,它现在已被弃用,因为它使用了不再受支持的 openswan。现在我们有了 strongswan(也许 Ubuntu 开发人员需要切换到 workingswan!)

我想知道其中一些错误是否是因为我使用的是 AMD CPU?

Jul  2 14:44:00 xen ipsec_setup: Starting Openswan IPsec 2.6.38...
Jul  2 14:44:01 xen ipsec_setup: Using KLIPS/legacy stack
Jul  2 14:44:01 xen kernel: [   49.125995] sha512_ssse3: Neither AVX nor SSSE3 is available/usable.
Jul  2 14:44:01 xen kernel: [   49.152561] sha256_ssse3: Neither AVX nor SSSE3 is available/usable.
Jul  2 14:44:01 xen kernel: [   49.172064] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.189713] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.207982] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.232719] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.261421] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.287047] AVX or AES-NI instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.307848] AVX or AES-NI instructions are not detected.
Jul  2 14:44:01 xen ipsec_setup: No KLIPS support found while requested, desperately falling back to netkey
Jul  2 14:44:01 xen ipsec_setup: NETKEY support found. Use protostack=netkey in /etc/ipsec.conf to avoid attempts to use KLIPS. Attempting to continue with NETKEY
Jul  2 14:44:01 xen kernel: [   49.329498] NET: Registered protocol family 15
Jul  2 14:44:01 xen ipsec_setup: Using NETKEY(XFRM) stack
Jul  2 14:44:01 xen kernel: [   49.403213] Initializing XFRM netlink socket
Jul  2 14:44:01 xen kernel: [   49.501839] sha512_ssse3: Neither AVX nor SSSE3 is available/usable.
Jul  2 14:44:01 xen kernel: [   49.516281] sha256_ssse3: Neither AVX nor SSSE3 is available/usable.
Jul  2 14:44:01 xen kernel: [   49.539742] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.561641] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.579962] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.604578] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.621050] AVX instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.646920] AVX or AES-NI instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.667841] AVX or AES-NI instructions are not detected.
Jul  2 14:44:01 xen kernel: [   49.686945] netlink: 24 bytes leftover after parsing attributes in process `ip'.
Jul  2 14:44:01 xen ipsec_setup: ...Openswan IPsec started
Jul  2 14:44:01 xen pluto: adjusting ipsec.d to /etc/ipsec.d
Jul  2 14:44:01 xen ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d
Jul  2 14:44:01 xen NetworkManager[806]: <info> VPN connection 'OTOY Cluster' (Connect) reply received.
Jul  2 14:44:11 xen NetworkManager[806]: <warn> VPN plugin failed: 7
Jul  2 14:44:42 xen NetworkManager[806]: <warn> VPN connection 'OTOY Cluster' (IP Config Get) timeout exceeded.
Jul  2 14:44:42 xen NetworkManager[806]: <info> Policy set 'Wired connection 1' (eth0) as default for IPv4 routing and DNS.
Jul  2 14:44:47 xen NetworkManager[806]: <info> VPN service 'l2tp' disappeared
Jul  2 14:51:35 xen kernel: [  503.672175] netlink: 24 bytes leftover after parsing attributes in process `ip'.
Jul  2 14:51:35 xen kernel: [  503.680945] ip_tables: (C) 2000-2006 Netfilter Core Team
Jul  2 14:51:35 xen kernel: [  503.686441] ip6_tables: (C) 2000-2006 Netfilter Core Team
Jul  2 14:52:04 xen NetworkManager[806]: <info> Starting VPN service 'l2tp'...
Jul  2 14:52:04 xen NetworkManager[806]: <info> VPN service 'l2tp' started (org.freedesktop.NetworkManager.l2tp), PID 3589
Jul  2 14:52:04 xen NetworkManager[806]: <info> VPN service 'l2tp' appeared; activating connections
Jul  2 14:52:04 xen NetworkManager[806]: <info> VPN plugin state changed: starting (3)
Jul  2 14:52:04 xen ipsec_setup: Stopping Openswan IPsec...
Jul  2 14:52:05 xen kernel: [  533.776479] netlink: 24 bytes leftover after parsing attributes in process `ip'.
Jul  2 14:52:05 xen kernel: [  534.105661] NET: Unregistered protocol family 15
Jul  2 14:52:06 xen ipsec_setup: ...Openswan IPsec stopped
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3. 还有其他一些

这些都涉及编辑 .conf 文件。这些都没有奏效。

hoo*_*enz 0

好吧,我从来没有让它在 Ubuntu 14.04 上运行过。

但我找到了这个链接,它在 16.04 上完美运行

http://blog.z-proj.com/enabling-l2tp-over-ipsec-on-ubuntu-16-04/

特别感谢作者 Zaid Daba'een

在 Ubuntu 16.04 上启用基于 IPSec 的 L2TP

自 Precise 以来,Ubuntu 已停止为 Ubuntu 提供基于 IPSec 的 L2TP 支持。使用 network-manager-l2tp 可以解决此问题。

首先,您必须安装先决条件:

sudo apt install \  
intltool \  
libtool \  
network-manager-dev \  
libnm-util-dev \  
libnm-glib-dev \  
libnm-glib-vpn-dev \  
libnm-gtk-dev \  
libnm-dev \  
libnma-dev \  
ppp-dev \  
libdbus-glib-1-dev \  
libsecret-1-dev \  
libgtk-3-dev \  
libglib2.0-dev \  
xl2tpd \  
strongswan  
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然后再次构建网络管理器:

git clone https://github.com/nm-l2tp/network-manager-l2tp.git  
cd network-manager-l2tp  
autoreconf -fi  
intltoolize  

Make sure no errors have occurred.
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配置构建:

./configure \
  --disable-static --prefix=/usr \
  --sysconfdir=/etc --libdir=/usr/lib/x86_64-linux-gnu \
  --libexecdir=/usr/lib/NetworkManager \
  --localstatedir=/var \
  --with-pppd-plugin-dir=/usr/lib/pppd/2.4.7

Make sure no errors occurred.
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然后制作:

make  
sudo make install  

Remove AppArmor settings for IPSec:

sudo apparmor_parser -R /etc/apparmor.d/usr.lib.ipsec.charon  
sudo apparmor_parser -R /etc/apparmor.d/usr.lib.ipsec.stroke  
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将 x2ltpd 替换为 libpcap:

sudo apt remove xl2tpd  
sudo apt install libpcap0.8-dev

wget https://github.com/xelerance/xl2tpd/archive/v1.3.6/xl2tpd-1.3.6.tar.gz  
tar xvzf xl2tpd-1.3.6.tar.gz  
cd xl2tpd-1.3.6  
make  
sudo make install  
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现在重新启动您的机器。

网络管理器现在应该可以选择使用 L2TP VPN 连接。