Couldn't set tty to PPP discipline: Operation not permitted

Question

настраиваю VPN между Centos (server) и Mikrotik (client) Помогите разобраться, в чем проблема? Конфигурации служб:

/etc/xl2tpd/xl2tpd.conf

[global]
    port = 1701
    debug avp = yes
    debug network = yes
    debug packet = yes
    debug state = yes
    debug tunnel = yes

[lns default]
    ip range = 192.168.41.10-192.168.41.250
    local ip = 192.168.41.1
    require chap = yes
    refuse pap = yes
    require authentication = yes
    name = l2tpd
    pppoptfile = /etc/ppp/options.xl2tpd
    length bit = yes
    ppp debug = yes

/etc/ppp/options.xl2tpd

ipcp-accept-local
ipcp-accept-remote
ms-dns  8.8.8.8
ms-dns  1.1.1.1
noccp
auth
#obsolete: crtscts
idle 1800
mtu 1410
mru 1410
nodefaultroute
debug

proxyarp
connect-delay 5000

при попытке подключиться pppd в логах следующая ошибка:

Dec 14 20:58:45 instance-test12 xl2tpd: xl2tpd[3377]: control_finish: message type is Incoming-Call-Connected(12).  Tunnel is 1883, call is 1.
Dec 14 20:58:45 instance-test12 xl2tpd: xl2tpd[3377]: Call established with 195.248.187.71, PID: 19553, Local: 30546, Remote: 1, Serial: 1882
Dec 14 20:58:45 instance-test12 pppd[19553]: pppd 2.4.5 started by root, uid 0
Dec 14 20:58:45 instance-test12 pppd[19553]: Couldn't set tty to PPP discipline: Operation not permitted
Dec 14 20:58:45 instance-test12 pppd[19553]: Exit.
Dec 14 20:58:45 instance-test12 xl2tpd: xl2tpd[3377]: child_handler : pppd exited for call 1 with code 1
Dec 14 20:58:45 instance-test12 xl2tpd: xl2tpd[3377]: call_close: Call 30546 to 195.248.187.71 disconnected

вывод команды find /lib/modules/$(uname -r) -name *ppp*

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp
/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp/ppp_async.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp/ppp_deflate.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp/ppp_generic.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp/ppp_mppe.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp/ppp_synctty.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp/pppoe.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/ppp/pppox.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/drivers/net/wan/hdlc_ppp.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/net/atm/pppoatm.ko.xz

/lib/modules/5.4.17-2102.206.1.el7uek.x86_64/kernel/net/l2tp/l2tp_ppp.ko.xz

вывод команды: lsmod | grep ppp

l2tp_ppp               28672  0

l2tp_netlink           24576  1 l2tp_ppp

l2tp_core              32768  2 l2tp_ppp,l2tp_netlink

pppox                  16384  1 l2tp_ppp

ppp_generic            40960  2 pppox,l2tp_ppp

slhc                   16384  1 ppp_generic

БЛОГ НА HUSL

Couldn't set tty to PPP discipline: Operation not permitted

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