sudo ifup usb0
Internet Systems Consortium DHCP Client 4.2.4
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/usb0/da:91:49:ec:bb:13
Sending on   LPF/usb0/da:91:49:ec:bb:13
Sending on   Socket/fallback
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 21
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 16
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 14
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 19
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 18
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 14
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on usb0 to 255.255.255.255 port 67 interval 1
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
ssh stop/waiting
ssh start/running, process 7862