diff --git a/buildroot-2021.05/board/milkv/duo/overlay/etc/dnsmasq.conf b/buildroot-2021.05/board/milkv/duo/overlay/etc/dnsmasq.conf
new file mode 100644
index 000000000..fcdb620ff
--- /dev/null
+++ b/buildroot-2021.05/board/milkv/duo/overlay/etc/dnsmasq.conf
@@ -0,0 +1,4 @@
+interface=usb0
+dhcp-range=192.168.42.2,192.168.42.242,1h
+dhcp-option=3
+dhcp-option=6
diff --git a/buildroot-2021.05/configs/milkv_duo_musl_riscv64_defconfig b/buildroot-2021.05/configs/milkv_duo_musl_riscv64_defconfig
index 777f8b3c9..9abc699ee 100644
--- a/buildroot-2021.05/configs/milkv_duo_musl_riscv64_defconfig
+++ b/buildroot-2021.05/configs/milkv_duo_musl_riscv64_defconfig
@@ -475,6 +475,7 @@ BR2_PACKAGE_STRACE=y
 # NetworkManager needs udev /dev management and a glibc toolchain w/ headers >= 3.2, dynamic library, wchar, threads
 #
 
+BR2_PACKAGE_DNSMASQ=y
 BR2_PACKAGE_DROPBEAR=y
 BR2_PACKAGE_DROPBEAR_CLIENT=y
 # # BR2_PACKAGE_DROPBEAR_DISABLE_REVERSEDNS is not set
diff --git a/buildroot-2021.05/dl/dnsmasq/.lock b/buildroot-2021.05/dl/dnsmasq/.lock
new file mode 100644
index 000000000..e69de29bb
diff --git a/buildroot-2021.05/dl/dnsmasq/dnsmasq-2.85.tar.xz b/buildroot-2021.05/dl/dnsmasq/dnsmasq-2.85.tar.xz
new file mode 100644
index 000000000..c9ad70aa7
Binary files /dev/null and b/buildroot-2021.05/dl/dnsmasq/dnsmasq-2.85.tar.xz differ