Comment 3 for bug 1420923

debug information of /var/log/upstart/networking.log:
+ exit 1
run-parts: /etc/network/if-up.d/orange-box-setup-nat exited with return code 1
Failed to bring up eth0.
++ id -u
+ '[' 0 '!=' 0 ']'
+ '[' br0 = lo ']'
++ route -n
++ grep '^10\.14\.'
++ sed -e 's/.* //'
+ internal=br0
++ ip route ls
++ grep '^default'
++ awk '{print $5}'
+ external=
+ '[' -z br0 ']'
+ '[' -z '' ']'
+ echo 'usage: /etc/network/if-up.d/orange-box-setup-nat [INTERNAL_INTERFACE] [EXTERNAL_INTERFACE]'
usage: /etc/network/if-up.d/orange-box-setup-nat [INTERNAL_INTERFACE] [EXTERNAL_INTERFACE]