diff --git a/configs/defconfig.esp32 b/configs/defconfig.esp32
index 2e88a27ed..439f44d9d 100644
--- a/configs/defconfig.esp32
+++ b/configs/defconfig.esp32
@@ -19,3 +19,6 @@ CONFIG_TWAI_ERRATA_FIX_TX_INTR_LOST=y
 CONFIG_TWAI_ERRATA_FIX_RX_FRAME_INVALID=y
 CONFIG_TWAI_ERRATA_FIX_RX_FIFO_CORRUPT=y
 CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK=y
+CONFIG_ETH_DMA_BUFFER_SIZE=512
+CONFIG_ETH_DMA_RX_BUFFER_NUM=10
+CONFIG_ETH_DMA_TX_BUFFER_NUM=30
\ No newline at end of file