So, I have my raspberry pi running Raspbian 9 configured using a static IP address for both WLAN0 and ETH0.
Both work if I boot with an ethernet-cable plugged in.
But, in certain situations, it happens that my pi should boot without a cable plugged in, or with the router not being alive yet. When this situation occurs, for some reason my raspberry pi will not connect to the network (as in: I can never reach it, be it by SSH or ping) untill I give it a reset.
I've read about an option "allow_hotplug" which sounds like the thing I need, but that doesn't work either (and I guess I shouldn't even be touching /etc/network/interfaces on Debian Stretch..)
Could anyone point me in the right direction? I really need this pi to be reachable on the network, even when the network is a bit slower in starting than the pi.
# 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 iface eth0 inet manual allow-hotplug 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
# A sample configuration for dhcpcd. # See dhcpcd.conf(5) for details. # Allow users of this group to interact with dhcpcd via the control socket. #controlgroup wheel # Inform the DHCP server of our hostname for DDNS. hostname # Use the hardware address of the interface for the Client ID. clientid # or # Use the same DUID + IAID as set in DHCPv6 for DHCPv4 ClientID as per RFC4361. # Some non-RFC compliant DHCP servers do not reply with this set. # In this case, comment out duid and enable clientid above. #duid # Persist interface configuration when dhcpcd exits. persistent # Rapid commit support. # Safe to enable by default because it requires the equivalent option set # on the server to actually work. option rapid_commit # A list of options to request from the DHCP server. option domain_name_servers, domain_name, domain_search, host_name option classless_static_routes # Most distributions have NTP support. option ntp_servers # Respect the network MTU. This is applied to DHCP routes. option interface_mtu # A ServerID is required by RFC2131. require dhcp_server_identifier # Generate Stable Private IPv6 Addresses instead of hardware based ones slaac private interface wlan0 static ip_address=192.168.123.45/24 static routers=192.168.123.45 static domain_name_servers=184.108.40.206 220.127.116.11 denyinterfaces wlan0 interface eth0 static ip_address=192.168.1.199/24 static routers=192.168.1.1 static domain_name_servers=18.104.22.168 22.214.171.124