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Re: NM 1.4.4 and hotspot problem

On Tue, 2018-02-20 at 22:47 +0100, Belisko Marek wrote:

Hi Dan,

On Tue, Feb 20, 2018 at 10:11 PM, Dan Williams <dcbw redhat com>
wrote:

On Tue, 2018-02-20 at 21:00 +0100, Belisko Marek wrote:

Hi,

I'm trying to configure hotspot by using this command:
nmcli dev wifi hotspot ifname wlan0 ssid test password "test1234"

on orangepi which is using realtek wifi (out of tree driver).
When
want to setup simple hotspot it looks like there are soe
mtroubles
with iptbles + dnsmasq. Any ideas what can cause this issue?
Thanks


Your analysis looks correct.  What happens when you run the
iptables
command manually?

/usr/sbin/iptables --table nat \
   --insert POSTROUTING --source 10.42.0.0/255.255.255.0 \
   ! --destination 10.42.0.0/255.255.255.0 --jump MASQUERADE

does /usr/sbin/iptables exist?

does your kernel have the ipt_MASQUERADE, iptable_nat,
nf_conntrack,
iptable_mangle, and other modules like that available?


I've nmcli c up Hotspot


What does your 'iptables-save' output look like on this machine?

Dan



IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9165] device (wlan0): Activation: starting
connection 'Hotspot' (13e514a4-5c21-43ec-9658-d2d80738bac7)
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9187] audit: op="connection-activate"
uuid="13e514a4-5c21-43ec-9658-d2d80738bac7" name="Hotspot" pid=985
uid=0 result="success"
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9207] device (wlan0): state change: disconnected
-> prepare (reason 'none') [30 40 0]
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9230] manager: NetworkManager state is now
CONNECTING
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9439] device (wlan0): set-hw-addr: set-cloned MAC
address to 12:81:76:EA:FC:D0 (permanent)
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9810] device (wlan0): state change: prepare ->
config (reason 'none') [40 50 0]
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9840] device (wlan0): Activation: (wifi) access
point 'Hotspot' has security, but secrets are required.
Feb 20 21:41:02 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162862.9856] device (wlan0): state change: config ->
need-auth (reason 'none') [50 60 0]
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0233] device (wlan0): state change: need-auth ->
prepare (reason 'none') [60 40 0]
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0343] device (wlan0): state change: prepare ->
config (reason 'none') [40 50 0]
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0372] device (wlan0): Activation: (wifi)
connection 'Hotspot' has security, and secrets exist.  No new secrets
needed.
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0376] Config: added 'ssid' value 'test'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0377] Config: added 'mode' value '2'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0378] Config: added 'frequency' value '2412'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0379] Config: added 'key_mgmt' value 'WPA-PSK'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0379] Config: added 'psk' value '<omitted>'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0380] Config: added 'proto' value 'RSN'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0381] Config: added 'pairwise' value 'CCMP'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0382] Config: added 'group' value 'CCMP'
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.0543] sup-iface[0x25ecd0,wlan0]: config: set
interface ap_scan to 2
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.8770] device (wlan0): supplicant interface state:
disconnected -> completed
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.8772] device (wlan0): Activation: (wifi) Stage 2
of 5 (Device Configure) successful.  Started Wi-Fi Hotspot 'test'.
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.8777] device (wlan0): state change: config ->
ip-config (reason 'none') [50 70 0]
Feb 20 21:41:03 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162863.9579] Executing: /usr/sbin/iptables --table
filter
--insert INPUT --in-interface wlan0 --protocol tcp --destination-port
53 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.1881] Executing: /usr/sbin/iptables --table
filter
--insert INPUT --in-interface wlan0 --protocol udp --destination-port
53 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2000] Executing: /usr/sbin/iptables --table
filter
--insert INPUT --in-interface wlan0 --protocol tcp --destination-port
67 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2107] Executing: /usr/sbin/iptables --table
filter
--insert INPUT --in-interface wlan0 --protocol udp --destination-port
67 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2220] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --in-interface wlan0 --jump REJECT
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.2347] ** Command returned exit status 1.
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2350] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --out-interface wlan0 --jump REJECT
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.2479] ** Command returned exit status 1.
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2483] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --in-interface wlan0 --out-interface wlan0 --jump
ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2577] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --source 10.42.0.0/255.255.255.0 --in-interface
wlan0
--jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2676] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --destination 10.42.0.0/255.255.255.0 --out-
interface
wlan0 --match state --state ESTA
BLISHED,RELATED --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.2911] ** Command returned exit status 1.
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.2914] Executing: /usr/sbin/iptables --table nat
--insert POSTROUTING --source 10.42.0.0/255.255.255.0 ! --destination
10.42.0.0/255.255.255.0 --jump MASQU
ERADE
Error: Connection activation failed.
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
root@orange-pi-pc-plus:~# Feb 20 21:41:04 orange-pi-pc-plus user.info
NetworkManager[264]: <info>  [1519162864.5330] dnsmasq-manager:
starting dnsmasq...
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.5387] device (wlan0): state change: ip-config ->
ip-check (reason 'none') [70 80 0]
Feb 20 21:41:04 orange-pi-pc-plus daemon.info NetworkManager[264]:
dnsmasq: failed to create listening socket for 10.42.0.1: Address
already in use
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.5459] dnsmasq-manager: dnsmasq exited with error:
Network access problem (address in use, permissions) (2)
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.5461] device (wlan0): state change: ip-check ->
failed (reason 'ip-config-unavailable') [80 120 5]
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.5475] manager: NetworkManager state is now
DISCONNECTED
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.5514] device (wlan0): Activation: failed for
connection 'Hotspot'
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.5581] device (wlan0): state change: failed ->
disconnected (reason 'none') [120 30 0]
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.5936] device (wlan0): set-hw-addr: set MAC
address
to 62:5C:B4:CF:D2:69 (scanning)
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.6194] Executing: /usr/sbin/iptables --table nat
--delete POSTROUTING --source 10.42.0.0/255.255.255.0 ! --destination
10.42.0.0/255.255.255.0 --jump MASQU
ERADE
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.6726] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --destination 10.42.0.0/255.255.255.0 --out-
interface
wlan0 --match state --state ESTA
BLISHED,RELATED --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.6940] ** Command returned exit status 1.
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.6943] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --source 10.42.0.0/255.255.255.0 --in-interface
wlan0
--jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.7056] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --in-interface wlan0 --out-interface wlan0 --jump
ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.7167] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --out-interface wlan0 --jump REJECT
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.7276] ** Command returned exit status 1.
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.7279] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --in-interface wlan0 --jump REJECT
Feb 20 21:41:04 orange-pi-pc-plus user.warn NetworkManager[264]:
<warn>  [1519162864.7388] ** Command returned exit status 1.
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.7391] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol udp --destination-port
67 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.7520] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol tcp --destination-port
67 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.7644] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol udp --destination-port
53 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.7773] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol tcp --destination-port
53 --jump ACCEPT
Feb 20 21:41:04 orange-pi-pc-plus user.info NetworkManager[264]:
<info>  [1519162864.8013] device (wlan0): supplicant interface state:
completed -> disconnected
added mentioned modules but I'm not sure which one can be still
missing because issue is still there:

Does somewhere exist some list of necessary modules? Looks like my
kernel is configured as one big binary instead of modules.
I have running modules:
lsmod
Module                  Size  Used by
ipt_MASQUERADE         16384  -2
xt_tcpudp              16384  -2
iptable_filter         16384  -2
iptable_nat            16384  -2
ip_tables              20480  -2
x_tables               20480  -2

Still looks like some iptables calls are failing. What about dnsmasq
error: dnsmasq: failed to create listening socket for 10.42.0.1:
Address already in use

Thanks  a lot.

BR,

marek




Dan


Log:
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.3228] keyfile: add connection in-memory
(13e514a4-5c21-43ec-9658-d2d80738bac7,"Hotspot")
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.3308] device (wlan0): Activation: starting
connection 'Hotspot' (13e514a4-5c21-43ec-9658-d2d80738bac7)
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.3343] keyfile: update
/etc/NetworkManager/system-connections/Hotspot
(13e514a4-5c21-43ec-9658-d2d80738bac7,"Hotspot") and persist
connection
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.3351] audit: op="connection-add-activate"
uuid="13e514a4-5c21-43ec-9658-d2d80738bac7" name="Hotspot"
pid=1384
uid=0 result="success"
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.3416] device (wlan0): state change:
disconnected
-> prepare (reason 'none') [30 40 0]
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.3426] manager: NetworkManager state is now
CONNECTING
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.3726] device (wlan0): set-hw-addr: set-cloned 
MAC
address to 12:81:76:EA:FC:D0 (permanent)
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4096] device (wlan0): state change: prepare
->
config (reason 'none') [40 50 0]
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4111] device (wlan0): Activation: (wifi)
access
point 'Hotspot' has security, but secrets are required.
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4113] device (wlan0): state change: config ->
need-auth (reason 'none') [50 60 0]
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4386] device (wlan0): supplicant interface
state:
inactive -> disconnected
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4392] device (wlan0): supplicant interface
state:
disconnected -> inactive
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4666] device (wlan0): state change: need-auth 
->
prepare (reason 'none') [60 40 0]
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4746] device (wlan0): state change: prepare
->
config (reason 'none') [40 50 0]
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4759] device (wlan0): Activation: (wifi)
connection 'Hotspot' has security, and secrets exist.  No new
secrets
needed.
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4763] Config: added 'ssid' value 'test'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4765] Config: added 'mode' value '2'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4766] Config: added 'frequency' value '2412'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4767] Config: added 'key_mgmt' value 'WPA-
PSK'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4768] Config: added 'psk' value '<omitted>'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4769] Config: added 'proto' value 'RSN'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4770] Config: added 'pairwise' value 'CCMP'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4771] Config: added 'group' value 'CCMP'
Feb 20 19:55:47 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156547.4983] sup-iface[0x259368,wlan0]: config: set
interface ap_scan to 2
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.3471] device (wlan0): supplicant interface
state:
inactive -> completed
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.3473] device (wlan0): Activation: (wifi)
Stage 2
of 5 (Device Configure) successful.  Started Wi-Fi Hotspot
'test'.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.3483] device (wlan0): state change: config ->
ip-config (reason 'none') [50 70 0]
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.4330] Executing: /usr/sbin/iptables --table
filter
--insert INPUT --in-interface wlan0 --protocol tcp --destination-
port
53 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.4502] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.4506] Executing: /usr/sbin/iptables --table
filter
--insert INPUT --in-interface wlan0 --protocol udp --destination-
port
53 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.4682] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.infoIPv6:
ADDRCONF(NETDEV_UP):
wlan0: link is not ready
 NetworkManager[1375]: <info>  [1519156548.4686] Executing:
/usr/sbin/iptables --table filter --insert INPUT --in-interface
wlan0
--protocol tcp --destination-port 67 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.4858] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.4861] Executing: /usr/sbin/iptables --table
filter
--insert INPUT --in-interface wlan0 --protocol udp --destination-
port
67 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.5040] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.5043] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --in-interface wlan0 --jump REJECT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.5202] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.5205] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --out-interface wlan0 --jump REJECT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.5366] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.5369] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --in-interface wlan0 --out-interface wlan0 --
jump
ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.5529] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.5532] Executing: /usr/sbin/iptables --table
filter
--insert FORWARD --source 10.42.0.0/255.255.255.0 --in-interface
wlan0
--jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.5693] ** Command returned exit status 3.
Error: Connection activation failed: (5) IP configuration could
not
be
reserved (no available address, timeout, etc.).
root@orange-pi-pc-plus:~# Feb 20 19:55:48 orange-pi-pc-plus
user.info
NetworkManager[1375]: <info>  [1519156548.5697] Executing:
/usr/sbin/iptables --table filter --insert FORWARD --destination
10.42.0.0/255.255.255.0 --out-interface wlan0
 --match state --state ESTABLISHED,RELATED --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.5965] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.5968] Executing: /usr/sbin/iptables --table
nat
--insert POSTROUTING --source 10.42.0.0/255.255.255.0 ! --
destination
10.42.0.0/255.255.255.0 --jump MASQ
UERADE
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.6098] ** Command returned exit status 1.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.6105] dnsmasq-manager: starting dnsmasq...
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.6158] device (wlan0): state change: ip-config 
->
ip-check (reason 'none') [70 80 0]
Feb 20 19:55:48 orange-pi-pc-plus daemon.info
NetworkManager[1375]:
dnsmasq: failed to create listening socket for 10.42.0.1: Address
already in use
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.6228] dnsmasq-manager: dnsmasq exited with
error:
Network access problem (address in use, permissions) (2)
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.6230] device (wlan0): state change: ip-check
->
failed (reason 'ip-config-unavailable') [80 120 5]
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.6243] manager: NetworkManager state is now
DISCONNECTED
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.6283] device (wlan0): Activation: failed for
connection 'Hotspot'
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.6534] device (wlan0): state change: failed ->
disconnected (reason 'none') [120 30 0]
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.6771] device (wlan0): set-hw-addr: set MAC
address
to C6:38:4F:E7:AC:F6 (scanning)
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.6940] Executing: /usr/sbin/iptables --table
nat
--delete POSTROUTING --source 10.42.0.0/255.255.255.0 ! --
destination
10.42.0.0/255.255.255.0 --jump MASQ
UERADE
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.7060] ** Command returned exit status 1.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.7063] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --destination 10.42.0.0/255.255.255.0 --out-
interface
wlan0 --match state --state EST
ABLISHED,RELATED --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.7426] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.7428] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --source 10.42.0.0/255.255.255.0 --in-interface
wlan0
--jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.7610] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.7613] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --in-interface wlan0 --out-interface wlan0 --
jump
ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.7786] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.7788] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --out-interface wlan0 --jump REJECT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.7959] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.7962] Executing: /usr/sbin/iptables --table
filter
--delete FORWARD --in-interface wlan0 --jump REJECT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.8133] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.8137] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol udp --destination-
port
67 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.8324] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.8327] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol tcp --destination-
port
67 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.8518] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.8522] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol udp --destination-
port
53 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.8709] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.8712] Executing: /usr/sbin/iptables --table
filter
--delete INPUT --in-interface wlan0 --protocol tcp --destination-
port
53 --jump ACCEPT
Feb 20 19:55:48 orange-pi-pc-plus user.warn NetworkManager[1375]:
<warn>  [1519156548.8896] ** Command returned exit status 3.
Feb 20 19:55:48 orange-pi-pc-plus user.info NetworkManager[1375]:
<info>  [1519156548.8929] device (wlan0): supplicant interface
state:
completed -> disconnected

BR,

marek
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