Hello,
Raspberry Pi is used as a DHCP server for a network.
When the router is restarted, Rasberry Pi lost the IP address of eth0 and does not recover it.
However the packet arrives to eth0, because the DHCP server complains that it receives them but it cannot answer because of the lack of address for eth0.
Only a reboot of Raspbian does a recovering of this IP.
I have added allow-hotplug but without succeed.
Do you know how to give back automatically this address without a rebooting?
It is an updated Raspbian Jessie.
$cat /etc/network/interfaces
auto lo
iface lo inet loopback
allow-hotplug eth0
iface eth0 inet static
address 192.168.1.16
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
Regards.