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I have problem to connect on internet over Wi-Fi. Cable is not connected.

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.0.1     0.0.0.0         UG    0      0        0 eth0
0.0.0.0         192.168.0.1     0.0.0.0         UG    303    0        0 wlan0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.0.0     0.0.0.0         255.255.255.0   U     303    0        0 wlan0

After command $ ifdown eth0 internet working.

File /etc/network/interfaces:

# interfaces(5) file used by ifup(8) and ifdown(8)

# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'

# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

auto lo
iface lo inet loopback

allow-hotplug eth0
iface eth0 inet static
    address 192.168.0.80/24
    network 192.168.0.0
    gateway 192.168.0.1
    broadcast 192.168.0.255
    dns-nameservers 192.168.0.1 8.8.8.8
    dns-options rotate

auto wlan0
iface wlan0 inet manual
    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

allow-hotplug wlan1
iface wlan1 inet manual
    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

How to change configuration, to work over cable if cable is connected and work over Wi-Fi if cable is not connected ?

Thanks :)

Michal Kalita
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1 Answers1

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"How to change configuration" SIMPLE revert to the default settings which work out of the box. See How do I set up networking/WiFi/Static IP.

If you REALLY must use static do it properly!

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Milliways
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