L2PT VPN

[firewall]
iptables -A INPUT -d 0/0 -p udp --dport 1701 -j ACCEPT
iptables -A INPUT -d 0/0 -p tcp --dport 1701 -j ACCEPT




[2.4.5/pppol2tp.so: cannot open shared object file: No such file or directory]
https://bugs.centos.org/view.php?id=5832


[referensi]
https://linux.die.net/man/5/xl2tpd.conf
https://linuxexplore.com/how-tos/l2tp-vpn-using-xl2tpd/
https://bbs.archlinux.org/viewtopic.php?id=126843
https://www.centos.org/forums/viewtopic.php?t=44091


[TESTED]
CENTOS 6 & DEBIAN 7

[example config]
;;--------------------
;;
;;--------------------

[global]
;listen-addr = 0.0.0.0
; force userspace = yes
;debug tunnel = yes
;ipsec saref = yes

;;
;;[fix from : https://bugs.centos.org/view.php?id=5832]
;;
force userspace = yes

[lns default]
ip range = 172.99.1.2-172.99.1.253
local ip = 172.99.1.1
; leave chap unspecified for maximum compatibility with windows, iOS, etc
;require pap = yes
require chap = yes
;refuse pap = yes
require authentication = yes
name = l2VPN
ppp debug = yes
pppoptfile = /etc/xl2tpd/options.xl2tpd
length bit = yes