diff --git a/scripts/poky-qemu-ifup b/scripts/poky-qemu-ifup
index 68d8d37475..e248a27106 100755
--- a/scripts/poky-qemu-ifup
+++ b/scripts/poky-qemu-ifup
@@ -92,7 +92,7 @@ if [ "x$IFCONFIG" = "x" ]; then
 	IFCONFIG=/sbin/ifconfig
 fi
 
-n=$[ `echo $TAP | sed 's/tap//'` + 1 ]
+n=$[ (`echo $TAP | sed 's/tap//'` * 2) + 1 ]
 $IFCONFIG $TAP 192.168.7.$n
 
 # setup NAT for tap0 interface to have internet access in QEMU
diff --git a/scripts/poky-qemu-internal b/scripts/poky-qemu-internal
index 0cf4ced707..f1aa43945a 100755
--- a/scripts/poky-qemu-internal
+++ b/scripts/poky-qemu-internal
@@ -91,7 +91,10 @@ release_lock() {
     fi
 }
 
-KERNEL_NETWORK_CMD="ip=192.168.7.2::192.168.7.1:255.255.255.0"
+n1=$[ (`echo $TAP | sed 's/tap//'` * 2) + 1 ]
+n2=$[ (`echo $TAP | sed 's/tap//'` * 2) + 2 ]
+
+KERNEL_NETWORK_CMD="ip=192.168.7.$n2::192.168.7.$n1:255.255.255.0"
 QEMU_TAP_CMD="-net tap,vlan=0,ifname=$TAP,script=no,downscript=no"
 QEMU_NETWORK_CMD="-net nic,vlan=0 $QEMU_TAP_CMD"
 KERNCMDLINE="mem=$QEMU_MEMORY"