diff --git a/projects/ATV/linux/linux.i386.conf b/projects/ATV/linux/linux.i386.conf
index be91d507d6..c780cf14f6 100644
--- a/projects/ATV/linux/linux.i386.conf
+++ b/projects/ATV/linux/linux.i386.conf
@@ -948,7 +948,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/Fusion/linux/linux.i386.conf b/projects/Fusion/linux/linux.i386.conf
index a00dfdd40b..fc9f25b650 100644
--- a/projects/Fusion/linux/linux.i386.conf
+++ b/projects/Fusion/linux/linux.i386.conf
@@ -984,7 +984,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/Fusion/linux/linux.x86_64.conf b/projects/Fusion/linux/linux.x86_64.conf
index b8d83dba51..fa874f7b42 100644
--- a/projects/Fusion/linux/linux.x86_64.conf
+++ b/projects/Fusion/linux/linux.x86_64.conf
@@ -948,7 +948,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/Generic/linux/linux.i386.conf b/projects/Generic/linux/linux.i386.conf
index d8119d1509..81d0bc56f1 100644
--- a/projects/Generic/linux/linux.i386.conf
+++ b/projects/Generic/linux/linux.i386.conf
@@ -1001,7 +1001,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/Generic_OSS/linux/linux.i386.conf b/projects/Generic_OSS/linux/linux.i386.conf
index c10b77147f..9bff8d3a5d 100644
--- a/projects/Generic_OSS/linux/linux.i386.conf
+++ b/projects/Generic_OSS/linux/linux.i386.conf
@@ -998,7 +998,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/ION/linux/linux.i386.conf b/projects/ION/linux/linux.i386.conf
index fd4e9a6d93..0b92f47604 100644
--- a/projects/ION/linux/linux.i386.conf
+++ b/projects/ION/linux/linux.i386.conf
@@ -988,7 +988,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/ION/linux/linux.x86_64.conf b/projects/ION/linux/linux.x86_64.conf
index 653cd0c780..1806d0670d 100644
--- a/projects/ION/linux/linux.x86_64.conf
+++ b/projects/ION/linux/linux.x86_64.conf
@@ -944,7 +944,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/Intel/linux/linux.i386.conf b/projects/Intel/linux/linux.i386.conf
index fc0f3b8f6e..45f4bd11dc 100644
--- a/projects/Intel/linux/linux.i386.conf
+++ b/projects/Intel/linux/linux.i386.conf
@@ -990,7 +990,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/Intel/linux/linux.x86_64.conf b/projects/Intel/linux/linux.x86_64.conf
index 7571226928..5356723418 100644
--- a/projects/Intel/linux/linux.x86_64.conf
+++ b/projects/Intel/linux/linux.x86_64.conf
@@ -947,7 +947,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set
diff --git a/projects/Ultra/linux/linux.x86_64.conf b/projects/Ultra/linux/linux.x86_64.conf
index 3b6c962153..48d568b7b2 100644
--- a/projects/Ultra/linux/linux.x86_64.conf
+++ b/projects/Ultra/linux/linux.x86_64.conf
@@ -934,7 +934,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 # CONFIG_VETH is not set
 # CONFIG_NET_SB1000 is not set
 # CONFIG_ARCNET is not set