diff --git a/configs/ls2085a_simu_defconfig b/configs/ls2085a_simu_defconfig
index de9776d..9d04218 100644
--- a/configs/ls2085a_simu_defconfig
+++ b/configs/ls2085a_simu_defconfig
@@ -12,3 +12,4 @@
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_NFS is not set
 # CONFIG_CMD_MISC is not set
+CONFIG_NET_RANDOM_ETHADDR=y