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@@ -15,7 +15,9 @@ case "$IF_BRIDGE_PORTS" in
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esac
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brctl addbr $IFACE || exit 1
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-[[ -n $IF_BRIDGE_FD ]] && brctl setfd $IFACE $IF_BRIDGE_FD
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+if [ "$IF_BRIDGE_FD" != "" ]; then
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+ brctl setfd $IFACE $IF_BRIDGE_FD
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+fi
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for IF in $INTERFACES; do
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if ! grep -q $IF /proc/net/dev; then
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