The error
" vpnbox-f2-en1:/etc/network# ifup mybridge /etc/network/interfaces:39:
duplicate option ifup: couldn't read interfaces file
"/etc/network/interfaces"
is not seen in 1.5-6.
However there is another error in 1.5-6. Multiple bridge_pathcost lines
in in /etc/network/interfaces for multiple ports does not work.
Only the last bridge_pathcost line sticks.
This is because env variable IF_BRIDGE_PATHCOST can contain only
pathcost for one bridge port and that happens to be the last pathcost
line for the interface.
Eg:
auto mybridge
iface mybridge inet manual
bridge-ports ctz-priv eth0.3084
bridge_bridgeprio 1
bridge_stp yes
bridge_pathcost ctz-priv 100
bridge_pathcost eth0.3084 10
IF_BRIDGE_PATHCOST only contains "eth0.3084 10"
