diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 5b75693..20a81a0 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -56,6 +56,7 @@
 CONFIG_CMD_USB=y
 CONFIG_CMD_AXI=y
 CONFIG_CMD_AB_SELECT=y
+CONFIG_BOOTP_DNS2=y
 CONFIG_CMD_PCAP=y
 CONFIG_CMD_TFTPPUT=y
 CONFIG_CMD_TFTPSRV=y