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 5a48ea705b..30732969d4 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
@@ -136,6 +136,17 @@ CONFIG_HOTPLUG_PCI_ACPI=y
 CONFIG_HOTPLUG_PCI_ACPI_IBM=m
 CONFIG_IA32_EMULATION=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_PPPOATM=m
+CONFIG_PPPOE=m
+CONFIG_PPPOL2TP=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+CONFIG_HDLC_PPP=m
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_PACKET_DIAG=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 853590048b..cbe29f4aea 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
@@ -61,6 +61,17 @@ CONFIG_SECCOMP=y
 CONFIG_COMPAT=y
 CONFIG_CPU_IDLE=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_PPPOATM=m
+CONFIG_PPPOE=m
+CONFIG_PPPOL2TP=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+CONFIG_HDLC_PPP=m
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y