The following changes were made

* Removed non POSIX redirects
  * Removed setting of loopback up (seems to do this on its own?)
  * Corrected $verbose variable check (was -z, should be -n)
  * Added quotes for ip route command around $iface (colon was a problem)
  * Should note that v1.2 was incorrectly set in Makefile previously

SRC/iftools/ifup

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-VERSION=1.0
+VERSION=1.2
 CONFDIR=/etc
 CONFIGFILE=$CONFDIR/network.conf
 NL='
@@ -19,7 +19,9 @@ auto () {
         fi
         ;;
     esac
-  done <<< "$1"
+  done << EOF
+$1
+EOF
 
   echo "$autoifaces"
   }
@@ -84,7 +86,9 @@ getinet () {
         address=${address%% *}
         ;;
     esac
-  done <<< "$(ip addr show $iface)"
+  done << EOF
+$(ip addr show $iface)
+EOF
 
   echo $address
   }
@@ -218,7 +222,9 @@ up () {
           ;;
       esac
     fi
-  done <<< "$2"
+  done << EOF
+$2
+EOF
 
   if [ -z "$exists" ]; then
     echo "$iface not defined"
@@ -237,6 +243,21 @@ up () {
 
     for brport in "$brports"; do
       [ -n "$verbose" ] && echo "Configuring $brport as slave to $iface"
+      [ -n "$verbose" ] && echo "Flushing interface $brport"
+  
+      if [ -n "$noact" ]; then
+        echo "ip address flush dev $brport"
+      else
+        ip address flush dev $brport
+      fi
+
+      [ -n "$verbose" ] && echo "Bringing up interface $brport"
+  
+      if [ -n "$noact" ]; then
+        echo "ip link set dev $brport up"
+      else
+        ip link set dev $brport up
+      fi
 
       if [ -n "$noact" ]; then
         echo "ip link set dev $brport master $iface"
@@ -336,7 +357,7 @@ up () {
   fi
 
   if [ -n "$gateway" ]; then
-    [ -z "$verbose" ] && echo "Setting default route via $gateway"
+    [ -n "$verbose" ] && echo "Setting default route via $gateway"
 
     if [ -n "$noact" ]; then
       echo "ip route add default via $gateway"
@@ -364,7 +385,7 @@ up () {
       if [ -n "$noact" ]; then
         echo "ip route add $route dev $iface src $address"
       else
-        ip route add $route dev $iface src $address
+        ip route add $route dev "$iface" src "$address"
       fi
     done
   fi