yuriy@yuriy-laptop:~$ sudo /etc/init.d/networking restart
* Reconfiguring network interfaces... RTNETLINK answers: No such process
There is already a pid file /var/run/dhclient.eth0.pid with pid 1890
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit
https://www.isc.org/software/dhcp/Listening on LPF/eth0/ff:ff:ff:ff:ff:ff
Sending on LPF/eth0/ff:ff:ff:ff:ff:ff
Sending on Socket/fallback
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit
https://www.isc.org/software/dhcp/SIOCSIFFLAGS: Cannot assign requested address
SIOCSIFFLAGS: Cannot assign requested address
Listening on LPF/eth0/ff:ff:ff:ff:ff:ff
Sending on LPF/eth0/ff:ff:ff:ff:ff:ff
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
send_packet: Network is down
receive_packet failed on eth0: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9
send_packet: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 17
send_packet: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9
send_packet: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
send_packet: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
send_packet: Network is down
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
RTNETLINK answers: Network is down
run-parts: /etc/network/if-up.d/avahi-autoipd exited with return code 2