ошибка сети: networking.service failed

[pl84]

настроен бридж между свистком и сетевухой, которая смотрит внутрь,
поднят nat по ссылке https://forum.ubuntu.ru/index.php?topic=107492.0,
поднята точка доступа https://help.ubuntu.ru/wiki/wifi_ap#fnt__6

пакеты ходят, инет на комп идет, по вафле тоже получает телефон инет, те. все работает, но тут решил понизить уровень передатчика с 1 Аатта до 0.1 Ватта, поменял настройки свистка, хотел перезапустить сеть и вот такая ошибка меня ждала:
Job for networking.service failed because the control process exited with error code. See "systemctl status networking.service" and "journalctl -xe" for details.

почему так?


ifconfig -a

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user@MEDIA-SERVER:~$ ifconfig -a
br0       Link encap:Ethernet  HWaddr 40:8d:5c:0e:62:e4
          inet addr:192.168.100.1  Bcast:192.168.100.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:58277 errors:0 dropped:61 overruns:0 frame:0
          TX packets:52274 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:30162930 (30.1 MB)  TX bytes:17659188 (17.6 MB)

enp2s0    Link encap:Ethernet  HWaddr 40:8d:5c:0e:62:e4
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:25054 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29142 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2420088 (2.4 MB)  TX bytes:6176360 (6.1 MB)

enp3s0    Link encap:Ethernet  HWaddr 1c:5f:2b:a2:16:30
          inet addr:77.108.***.***  Bcast:77.108.207.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:38467 errors:0 dropped:0 overruns:0 frame:0
          TX packets:52897 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:15894722 (15.8 MB)  TX bytes:31957752 (31.9 MB)

lo        Link encap:Локальная петля (Loopback)
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:33918 errors:0 dropped:0 overruns:0 frame:0
          TX packets:33918 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:11838555 (11.8 MB)  TX bytes:11838555 (11.8 MB)

wlxf81a6708f336 Link encap:Ethernet  HWaddr f8:1a:67:08:f3:36
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:33392 errors:0 dropped:0 overruns:0 frame:0
          TX packets:25509 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:28567738 (28.5 MB)  TX bytes:12249547 (12.2 MB)

/etc/network/interfaces

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# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# localhost
auto lo
iface lo inet loopback

post-up iptables-restore </etc/iptables.conf

# Inet
auto enp3s0
iface enp3s0 inet static
address 77.108.207.64
netmask 255.255.255.0
gateway 77.108.207.1
dns-nameservers 85.234.32.35 85.234.33.23

# LAN-Bridge
auto enp2s0 br0
# iface enp2s0 inet manual

# Wi-Fi_Access-Point
auto wlxf81a6708f336 br0
iface wlxf81a6708f336 inet manual
pre-up iw dev wlxf81a6708f336 del
pre-up iw phy phy0 interface add wlxf81a6708f336 type __ap

# Bridge
iface br0 inet static
address 192.168.100.1
netmask 255.255.255.0
bridge_ports enp2s0 wlxf81a6708f336

systemctl restart networking.service

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user@MEDIA-SERVER:~$ sudo systemctl restart networking.service
[sudo] пароль для user:
Job for networking.service failed because the control process exited with error code. See "systemctl status networking.service" and "journalctl -xe" for details.

systemctl status networking.service

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user@MEDIA-SERVER:~$ systemctl status networking.service
● networking.service - Raise network interfaces
   Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
  Drop-In: /run/systemd/generator/networking.service.d
           └─50-insserv.conf-$network.conf
   Active: failed (Result: exit-code) since Пт 2017-05-12 20:32:23 MSK; 1min 6s ago
     Docs: man:interfaces(5)
  Process: 6165 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
  Process: 6158 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm set
 Main PID: 6165 (code=exited, status=1/FAILURE)

май 12 20:32:23 MEDIA-SERVER systemd[1]: Starting Raise network interfaces...
май 12 20:32:23 MEDIA-SERVER sh[6158]: Unknown interface enp2s0
май 12 20:32:23 MEDIA-SERVER ifup[6165]: Unknown interface enp2s0
май 12 20:32:23 MEDIA-SERVER systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
май 12 20:32:23 MEDIA-SERVER systemd[1]: Failed to start Raise network interfaces.
май 12 20:32:23 MEDIA-SERVER systemd[1]: networking.service: Unit entered failed state.
май 12 20:32:23 MEDIA-SERVER systemd[1]: networking.service: Failed with result 'exit-code'.

journalctl -xe

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user@MEDIA-SERVER:~$ journalctl -xe
-- Результат: failed.
май 12 20:13:12 MEDIA-SERVER sudo[5562]: pam_unix(sudo:session): session closed for user root
май 12 20:13:12 MEDIA-SERVER systemd[1]: networking.service: Unit entered failed state.
май 12 20:13:12 MEDIA-SERVER systemd[1]: networking.service: Failed with result 'exit-code'.
май 12 20:16:58 MEDIA-SERVER sshd[4833]: pam_unix(sshd:session): session closed for user user
май 12 20:16:58 MEDIA-SERVER sudo[4905]: pam_unix(sudo:session): session closed for user root
май 12 20:16:58 MEDIA-SERVER systemd-logind[1418]: Removed session 6.
-- Subject: Сеанс 6 завершен
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Documentation: http://www.freedesktop.org/wiki/Software/systemd/multiseat
--
-- Сеанс с идентификатором 6 завершился.
май 12 20:17:01 MEDIA-SERVER CRON[5711]: pam_unix(cron:session): session opened for user root by (uid=0)
май 12 20:17:01 MEDIA-SERVER CRON[5712]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
май 12 20:17:01 MEDIA-SERVER CRON[5711]: pam_unix(cron:session): session closed for user root
май 12 20:19:43 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA 78:92:9c:39:1a:04 WPA: group key handshake completed (RSN)
май 12 20:19:44 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA 34:80:b3:f9:5d:a9 WPA: group key handshake completed (RSN)
май 12 20:19:44 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA 00:cd:fe:71:2e:ab WPA: group key handshake completed (RSN)
май 12 20:22:10 MEDIA-SERVER dnsmasq-dhcp[1867]: DHCPINFORM(br0) 192.168.100.116 78:24:af:43:0d:ef
май 12 20:22:10 MEDIA-SERVER dnsmasq-dhcp[1867]: DHCPACK(br0) 192.168.100.116 78:24:af:43:0d:ef pk-home-10
май 12 20:29:43 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA 78:92:9c:39:1a:04 WPA: group key handshake completed (RSN)
май 12 20:29:43 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA 00:cd:fe:71:2e:ab WPA: group key handshake completed (RSN)
май 12 20:29:43 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA 34:80:b3:f9:5d:a9 WPA: group key handshake completed (RSN)
май 12 20:32:10 MEDIA-SERVER dnsmasq-dhcp[1867]: DHCPINFORM(br0) 192.168.100.116 78:24:af:43:0d:ef
май 12 20:32:10 MEDIA-SERVER dnsmasq-dhcp[1867]: DHCPACK(br0) 192.168.100.116 78:24:af:43:0d:ef pk-home-10
май 12 20:32:23 MEDIA-SERVER sudo[6155]:     user : TTY=pts/2 ; PWD=/home/user ; USER=root ; COMMAND=/bin/systemctl restart networking.service
май 12 20:32:23 MEDIA-SERVER sudo[6155]: pam_unix(sudo:session): session opened for user root by user(uid=0)
май 12 20:32:23 MEDIA-SERVER systemd[1]: Stopped Raise network interfaces.
-- Subject: Завершена остановка юнита networking.service.
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Процесс остановки юнита networking.service был завершен.
май 12 20:32:23 MEDIA-SERVER systemd[1]: Starting Raise network interfaces...
-- Subject: Начинается запуск юнита networking.service
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Начат процесс запуска юнита networking.service.
май 12 20:32:23 MEDIA-SERVER sh[6158]: Unknown interface enp2s0
май 12 20:32:23 MEDIA-SERVER ifup[6165]: Unknown interface enp2s0
май 12 20:32:23 MEDIA-SERVER systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
май 12 20:32:23 MEDIA-SERVER systemd[1]: Failed to start Raise network interfaces.
-- Subject: Ошибка юнита networking.service
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Произошел сбой юнита networking.service.
--
-- Результат: failed.
май 12 20:32:23 MEDIA-SERVER systemd[1]: networking.service: Unit entered failed state.
май 12 20:32:23 MEDIA-SERVER systemd[1]: networking.service: Failed with result 'exit-code'.
май 12 20:32:23 MEDIA-SERVER sudo[6155]: pam_unix(sudo:session): session closed for user root
май 12 20:34:49 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA bc:6c:21:4a:f8:51 IEEE 802.11: authenticated
май 12 20:34:49 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA bc:6c:21:4a:f8:51 IEEE 802.11: associated (aid 4)
май 12 20:34:49 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA bc:6c:21:4a:f8:51 RADIUS: starting accounting session 5915E9FF-00000005
май 12 20:34:49 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA bc:6c:21:4a:f8:51 WPA: pairwise key handshake completed (RSN)
май 12 20:34:53 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA bc:6c:21:4a:f8:51 IEEE 802.11: disassociated
май 12 20:34:54 MEDIA-SERVER hostapd[5054]: wlxf81a6708f336: STA bc:6c:21:4a:f8:51 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
май 12 20:36:17 MEDIA-SERVER dnsmasq-dhcp[1867]: DHCPINFORM(br0) 192.168.100.116 78:24:af:43:0d:ef
май 12 20:36:17 MEDIA-SERVER dnsmasq-dhcp[1867]: DHCPACK(br0) 192.168.100.116 78:24:af:43:0d:ef pk-home-10

[pl84]

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