Adding TCP Dump

Captures all network traffic (with a maximum packet size) so that if
anything happens during the initial configuration and installation
we can analyze it to determine what is happening in the network.

Change-Id: Ia941d0a8b7610e4ad3a9d1f6ef1b53ac437e6a54
Signed-off-by: beierlm <mark.beierl@canonical.com>