L2TP
Installation
apt-get install xl2tpd ppp openswan
Openswan
cat /etc/ipsec.conf
version 2.0
config setup
nat_traversal=yes
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12
oe=off
protostack=netkey
conn l2tp
authby=secret
pfs=no
auto=add
type=transport
left=XXX.XXX.XXX.XXX
leftprotoport=17/1701
right=%any
rightprotoport=17/%any
cat /etc/ipsec.secrets XXX.XXX.XXX.XXX %any : PSK "1234"
XL2TP
cat /etc/xl2tpd/xl2tpd.conf
[global] ipsec saref = yes [lns default] ip range = 10.1.2.2-10.1.2.255 local ip = 10.1.2.1 refuse chap = yes refuse pap = yes require authentication = yes ppp debug = yes pppoptfile = /etc/ppp/options.xl2tpd length bit = yes
PPP
cat /etc/ppp/options.xl2tpd require-mschap-v2 ms-dns 192.168.240.21 ms-dns 192.168.240.22 asyncmap 0 auth crtscts lock hide-password modem debug name l2tpd proxyarp lcp-echo-interval 30 lcp-echo-failure 4
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