diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.2 b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.2
index 4e3ef98ede..9404b5e0ed 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.2
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.2
@@ -657,6 +657,15 @@ CONFIG_MARVELL_PHY=m
 CONFIG_BROADCOM_PHY=m
 CONFIG_BCM87XX_PHY=m
 CONFIG_REALTEK_PHY=m
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_MPPE=m
+CONFIG_PPP_MULTILINK=y
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
 # CONFIG_USB_NET_DRIVERS is not set
 # CONFIG_WLAN is not set
 CONFIG_XEN_NETDEV_FRONTEND=m
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2 b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2
index 448565d9b3..ab05c5f7d9 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2
@@ -117,6 +117,15 @@ CONFIG_NET_XGENE=y
 CONFIG_SKY2=y
 CONFIG_SMC91X=y
 CONFIG_SMSC911X=y
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_MPPE=m
+CONFIG_PPP_MULTILINK=y
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
 CONFIG_RTL8192CE=m
 CONFIG_INPUT_EVDEV=y
 # CONFIG_SERIO_SERPORT is not set