wheels@wheels-laptop:~$ sudo ifup eth1
Error for wireless request "Set ESSID" (8B1A) :
    SET failed on device eth1 ; No such device.
Internet Systems Consortium DHCP Client V3.0.3
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All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

SIOCSIFADDR: No such device
eth1: ERROR while getting interface flags: No such device
eth1: ERROR while getting interface flags: No such device
Bind socket to interface: No such device
Failed to bring up eth1.