diff --git a/target/linux/generic/config-4.9 b/target/linux/generic/config-4.9
index 77cf3b5dc..fe9310bd8 100644
--- a/target/linux/generic/config-4.9
+++ b/target/linux/generic/config-4.9
@@ -1003,7 +1003,8 @@ CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_WX is not set
 # CONFIG_DEBUG_ZBOOT is not set
 # CONFIG_DECNET is not set
-CONFIG_DEFAULT_CUBIC=y
+CONFIG_DEFAULT_BBR=y
+# CONFIG_DEFAULT_CUBIC is not set
 CONFIG_DEFAULT_DEADLINE=y
 CONFIG_DEFAULT_HOSTNAME="(none)"
 CONFIG_DEFAULT_IOSCHED="deadline"
@@ -1012,7 +1013,8 @@ CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
 # CONFIG_DEFAULT_RENO is not set
 CONFIG_DEFAULT_SECURITY=""
 CONFIG_DEFAULT_SECURITY_DAC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
+CONFIG_DEFAULT_TCP_CONG="bbr"
+# CONFIG_DEFAULT_VEGAS is not set
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 # CONFIG_DELL_RBTN is not set
 # CONFIG_DELL_SMO8800 is not set
@@ -4505,7 +4507,7 @@ CONFIG_SYSVIPC_SYSCTL=y
 # CONFIG_TCG_XEN is not set
 # CONFIG_TCIC is not set
 CONFIG_TCP_CONG_ADVANCED=y
-# CONFIG_TCP_CONG_BBR is not set
+CONFIG_TCP_CONG_BBR=y
 # CONFIG_TCP_CONG_BIC is not set
 # CONFIG_TCP_CONG_CDG is not set
 CONFIG_TCP_CONG_CUBIC=y
@@ -4517,10 +4519,10 @@ CONFIG_TCP_CONG_CUBIC=y
 # CONFIG_TCP_CONG_LP is not set
 # CONFIG_TCP_CONG_NV is not set
 # CONFIG_TCP_CONG_SCALABLE is not set
-# CONFIG_TCP_CONG_VEGAS is not set
+CONFIG_TCP_CONG_VEGAS=y
 # CONFIG_TCP_CONG_VENO is not set
 # CONFIG_TCP_CONG_WESTWOOD is not set
-# CONFIG_TCP_CONG_YEAH is not set
+CONFIG_TCP_CONG_YEAH=y
 # CONFIG_TCP_MD5SIG is not set
 # CONFIG_TCS3414 is not set
 # CONFIG_TCS3472 is not set