我无法从 Windows 和 Android 客户端连接到我的 L2TP 服务器

Question

在您的日志中我看不到 xl2tp 运行的证据，也许服务尚未启动或处于活动状态（配置错误？）。

尝试这个设置，它对我帮助很大:(来源：strongSwan + xl2tpd VPN服务器：如何配置几个配置文件？）

不要使用激进模式，连接会不太安全。无论如何，请尝试使用此配置。我在我的 VPN 服务器上使用它，使用 strongswan-5.3.5 和 xl2tpd-1.3.6

ipsec配置文件

config setup
    cachecrls=yes
    uniqueids=yes
    charondebug=""

conn %default
    keyingtries=%forever
    dpddelay=30s
    dpdtimeout=120s


conn L2TP
    dpdaction=clear
  #Server IP
    left=192.168.1.130
  #Server default gateway
    leftnexthop=192.168.1.254
    leftprotoport=17/1701
    rightprotoport=17/%any
    right=%any
    rightsubnet=0.0.0.0/0
    leftauth=psk
    rightauth=psk
    leftid="<insert-the-public-ip-here>"
    ikelifetime=1h
    keylife=8h
    ike=aes128-sha1-modp1536,aes128-sha1-modp1024,aes128-md5-modp1536,aes128-md5-modp1024,3des-sha1-modp1536,3des-sha1-modp1024,3des-md5-modp1536,3des-md5-modp1024
    esp=aes128-sha1-modp1536,aes128-sha1-modp1024,aes128-md5-modp1536,aes128-md5-modp1024,3des-sha1-modp1536,3des-sha1-modp1024,3des-md5-modp1536,3des-md5-modp1024
    auto=add
    keyexchange=ike
    type=transport

conn block
    auto=ignore
conn private
    auto=ignore
conn private-or-clear
    auto=ignore
conn clear-or-private
    auto=ignore
conn clear
    auto=ignore
conn packetdefault
    auto=ignore

ipsec.secrets

<insert-the-left-id-here> %any : PSK "<my-password>"

/etc/xl2tpd/xl2tpd.conf

[global]
ipsec saref = no
debug tunnel = no
debug avp = no
debug network = no
debug state = no


[lns default]
ip range = 10.0.0.20-10.0.0.30
local ip = 10.0.0.1
require authentication = yes
name = l2tp
pass peer = yes
ppp debug = no
pppoptfile = /etc/ppp/options.xl2tpd
length bit = yes
unix authentication = yes

/etc/ppp/options.xl2tpd

ipcp-accept-local
ipcp-accept-remote
ms-dns 10.0.0.1
auth
idle 1800
mtu 1200
mru 1200
nodefaultroute
lock
proxyarp
connect-delay 5000
name l2tpd
ifname l2tp
login

/etc/ppp/chap-秘密

username  *   "l2tppassword"  *

重启服务

sudo service strongswan restart
sudo service xl2tpd restart

Answer 1