В гугле нашел как настроить xl2ptd-1.1.12, попытался таким же образом настроить у себя l2tpd (l2tpd-0.69-alt2.i586.rpm)
--- /etc/l2tpd/l2tpd.conf ---
[global]
access control = yes
[lac corbina]
lns = vpn.local
redial = yes
redial timeout = 1
require chap = yes
require authentication = no
name = <ИМЯ ПОЛЬЗОВАТЕЛЯ>
ppp debug = yes
pppoptfile = /etc/ppp/options.l2tpd
require pap = no
autodial = yes
--- /etc/ppp/options.l2tpd ---
name <ИМЯ ПОЛЬЗОВАТЕЛЯ>
remotename l2tp
ipparam corbina
connect /bin/true
nodeflate
nobsdcomp
persist
maxfail 0
nopcomp
noaccomp
defaultroute
--- /etc/ppp/chap-secrets ---
<ИМЯ ПОЛЬЗОВАТЕЛЯ> * <ПАРОЛЬ>
Результат:
Apr 7 05:15:25 virtualpc l2tpd[21224]: lac_call: Calling on tunnel 64060
Apr 7 05:15:25 virtualpc l2tpd[21224]: control_finish: Call established with 172.21.1.14, Local: 54771, Remote: 19271, Serial: 226
Apr 7 05:15:25 virtualpc pppd[26804]: pppd 2.4.4 started by root, uid 0
Apr 7 05:15:25 virtualpc l2tpd[21224]: control_finish: Connection closed to 172.21.1.14, serial 226 ()
Apr 7 05:15:25 virtualpc pppd[26804]: Failed to open /dev/ttyp0: Input/output error
Apr 7 05:15:25 virtualpc Failed to open /dev/ttyp0: Input/output error
Apr 7 05:15:25 virtualpc
Apr 7 05:15:25 virtualpc pppd[26804]: Failed to reopen /dev/ttyp0: Input/output error
Apr 7 05:15:25 virtualpc Failed to reopen /dev/ttyp0: Input/output error
Apr 7 05:15:25 virtualpc
Apr 7 05:15:25 virtualpc pppd[26804]: Terminating on signal 15
Apr 7 05:15:25 virtualpc Terminating on signal 15