diff --git a/components/dfs/Kconfig b/components/dfs/Kconfig
index 91df96cb080d1f653d189726ec87f7d30ee8727c..1654a2e6c4f496ab3e514e2b015c54773c9ba8c2 100644
--- a/components/dfs/Kconfig
+++ b/components/dfs/Kconfig
@@ -10,19 +10,22 @@ if RT_USING_DFS
     config DFS_USING_WORKDIR
         bool "Using working directory"
         default y
-
+     
     config DFS_FILESYSTEMS_MAX
-        int "The maximal number of mounted file system"
-        default 2
-
+        int "The maximal number of mounted file system"        
+        default 4 if RT_USING_DFS_NFS
+        default 2 
+    
     config DFS_FILESYSTEM_TYPES_MAX
         int "The maximal number of file system type"
-        default 2
-
+        default 4 if RT_USING_DFS_NFS
+        default 2 
+        
     config DFS_FD_MAX
         int "The maximal number of opened files"
+        default 16 if RT_USING_DFS_NFS
         default 4
-    
+   
     config RT_USING_DFS_ELMFAT
         bool "Enable elm-chan fatfs"
         default y
@@ -156,7 +159,7 @@ if RT_USING_DFS
 
     config RT_USING_DFS_NFS
         bool "Using NFS v3 client file system"
-        depends on RT_USING_LWIP
+        select RT_USING_LWIP
         default n
 
     if RT_USING_DFS_NFS
diff --git a/components/net/Kconfig b/components/net/Kconfig
index af375e6c03de66b5c2306cd05900dd76f2539ee8..c87ac9329426c197befc90dc0d95c0ccd1bd119e 100644
--- a/components/net/Kconfig
+++ b/components/net/Kconfig
@@ -111,6 +111,7 @@ config RT_USING_LWIP
 
         config RT_LWIP_UDP_PCB_NUM
             int "the number of UDP socket"
+            default 8 if RT_USING_DFS_NFS
             default 4
 
         if RT_LWIP_TCP