diff --git a/config/vcpe.cfg b/config/vcpe.cfg
index 23dc248..558f1e8 100644
--- a/config/vcpe.cfg
+++ b/config/vcpe.cfg
@@ -103,7 +103,7 @@ application:
         net_filter = "vlan and udp and dst port 67";
         # IP地址池配置
         range_set: (
-            {   dhcp_range = "192.168.101.2-192.168.101.4";
+            {   dhcp_range = "192.168.101.2-192.168.101.40";
                 subnet_mask = "255.255.255.0";
                 domain_server = "114.114.114.114,8.8.8.8";
                 gateway = "192.168.101.1";
diff --git a/dhcp_tools/detail_wnd.c b/dhcp_tools/detail_wnd.c
index b653af6..cbc6ad2 100644
--- a/dhcp_tools/detail_wnd.c
+++ b/dhcp_tools/detail_wnd.c
@@ -318,7 +318,6 @@ static gboolean upgrade_statusbar_proc(gpointer user_data) {
         }
     }
 
-
     sprintf(buf, "Offer %d.%03ds | ACK %d.%03ds | ip: %s | netmask: %s | gateway: %s | dns1: %s | dns2: %s |",
             tmOffer / 1000000, (tmOffer % 1000000) / 1000, tmAck / 1000000, (tmAck % 1000000) / 1000,
             SAFETY_STR_STRING(pIp, ""), SAFETY_STR_STRING(pNetmask, ""), SAFETY_STR_STRING(pGw, ""),
@@ -465,8 +464,8 @@ static gboolean button_release_event(GtkWidget *self, GdkEventButton UNUSED(even
 
         //printf("Select at(%d, %d), %d, %d, %d of %d\n", row, col, k, (k + 1) / 3, id, g_curPage);
         memcpy(valBuf, &g_HexBuf[g_curPage]->p[id], MIN(8, g_HexBuf[g_curPage]->buf_size - id));
-//        printf("%d, %d, %s, %s\n", valBuf[0] >> 4, valBuf[0] & 0x0F, binTbl[(valBuf[0] >> 4) & 0xF],
-//               binTbl[valBuf[0] & 0x0F]);
+        //        printf("%d, %d, %s, %s\n", valBuf[0] >> 4, valBuf[0] & 0x0F, binTbl[(valBuf[0] >> 4) & 0xF],
+        //               binTbl[valBuf[0] & 0x0F]);
 
         sprintf(s, "%s%s", binTbl[(valBuf[0] >> 4) & 0xF], binTbl[valBuf[0] & 0x0F]);
         gtk_list_store_append(store, &it);
@@ -546,7 +545,6 @@ void details_wnd_create(GtkBuilder *builder) {
     gtk_widget_set_name(notebook, "nbDhcpInfo");
 
     for (int i = 0; i < 4; i++) {
-        GtkTreeIter iter;
         const char *pTabName[] = {"Discover", "Offer", "Request", "ACK/NACK"};
         // 第一个页面
         GtkWidget  *label      = gtk_label_new(pTabName[i]);
diff --git a/srcs/service/dhcpd/db_interface.c b/srcs/service/dhcpd/db_interface.c
index 8467b73..1301f9f 100644
--- a/srcs/service/dhcpd/db_interface.c
+++ b/srcs/service/dhcpd/db_interface.c
@@ -194,7 +194,7 @@ int db_release_lease(PDHCP_REQ pReq) {
     return ERR_SUCCESS;
 }
 
-int lease_lock_pre_assign_ip() {
+int db_lock_pre_assign_ip() {
     int    rc;
     char   buf[1024] = {0};
     char **dbResult;
@@ -239,7 +239,7 @@ int lease_lock_pre_assign_ip() {
     return ERR_SUCCESS;
 }
 
-int lease_clearup_timeout_items() {
+int db_clearup_timeout_lease() {
     int  rc;
     char buf[1024] = {0};
 
@@ -263,7 +263,7 @@ int lease_clearup_timeout_items() {
     return ERR_SUCCESS;
 }
 
-int lease_ip_is_pre_assign(U32 uid, U32 ip) {
+int db_ip_is_pre_assign(U32 uid, U32 ip) {
     int    rc;
     char   buf[1024] = {0};
     char **dbResult;
@@ -312,7 +312,7 @@ int lease_ip_is_pre_assign(U32 uid, U32 ip) {
     return TRUE;
 }
 
-static int lease_get_info(PPOOL_CTX pAssign, const char *pRunSql, U64 *pDbId) {
+static int db_get_table_items(PPOOL_CTX pAssign, const char *pRunSql, U64 *pDbId) {
     int    rc;
     char **dbResult;
     int    nRow = 0, nColumn = 0;
@@ -356,7 +356,7 @@ static int lease_get_info(PPOOL_CTX pAssign, const char *pRunSql, U64 *pDbId) {
     }
 }
 
-int lease_get_from_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
+int db_get_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
     int  rc;
     U64  id;
     char buf[2048]  = {0};
@@ -365,7 +365,7 @@ int lease_get_from_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
     MAC_TO_STR(pReq->cliMac, macStr);
     snprintf(buf, 2048, GET_LEASE_INFO_FMT, macStr, pReq->hostName, pReq->uid, u32_to_str_ip(pReq->serverAddr));
 
-    rc = lease_get_info(pAssign, buf, &id);
+    rc = db_get_table_items(pAssign, buf, &id);
     if (rc == ERR_SUCCESS) {
         // 更新租约时间信息
         memset(buf, 0, 1024);
@@ -380,7 +380,7 @@ int lease_get_from_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
     return -ERR_ITEM_UNEXISTS;
 }
 
-int lease_get_from_pre_assign(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
+int db_get_pre_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
     int  rc;
     char buf[2048]  = {0};
     char macStr[20] = {0};
@@ -390,7 +390,7 @@ int lease_get_from_pre_assign(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
     snprintf(buf, 2048, GET_ASSIGN_IP_INFO_FMT, macStr, pReq->hostName, pReq->uid, u32_to_str_ip(pReq->serverAddr),
              DCHP_STEP_REQUEST_TIMEOUT);
 
-    rc = lease_get_info(pAssign, buf, &id);
+    rc = db_get_table_items(pAssign, buf, &id);
 
     if (rc == ERR_SUCCESS) {
         const char *pNetmask = u32_to_str_ip_safe(htonl(pAssign->netMask));
@@ -461,7 +461,7 @@ int lease_get_from_pre_assign(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
 #endif
 }
 
-int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign) {
+int db_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign) {
     int    rc;
     char   buf[1024] = {0};
     char **dbResult;
@@ -504,7 +504,7 @@ int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *pr
     return ERR_ITEM_UNEXISTS;
 }
 
-int lease_db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool) {
+int db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool) {
     int         rc;
     char        buf[1024]  = {0};
     char        macStr[20] = {0};
@@ -535,7 +535,7 @@ int lease_db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool) {
     return ERR_SUCCESS;
 }
 
-int lease_init_database() {
+int db_init_lease_database() {
     int rc;
 
     rc = db_sqlite3_sql_exec(CREATE_LEASE_TABLE(), NULL, NULL, NULL);
diff --git a/srcs/service/dhcpd/include/db_interface.h b/srcs/service/dhcpd/include/db_interface.h
index dbfd4fa..2258282 100644
--- a/srcs/service/dhcpd/include/db_interface.h
+++ b/srcs/service/dhcpd/include/db_interface.h
@@ -7,14 +7,14 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-int lease_db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool);
-int lease_init_database();
-int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign);
-int lease_ip_is_pre_assign(U32 uid, U32 ip);
-int lease_get_from_pre_assign(PDHCP_REQ pReq, PPOOL_CTX pAssign);
-int lease_get_from_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign);
-int lease_clearup_timeout_items();
-int lease_lock_pre_assign_ip();
+int db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool);
+int db_init_lease_database();
+int db_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign);
+int db_ip_is_pre_assign(U32 uid, U32 ip);
+int db_get_pre_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign);
+int db_get_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign);
+int db_clearup_timeout_lease();
+int db_lock_pre_assign_ip();
 int db_release_lease(PDHCP_REQ pReq);
 int db_add_lease(PDHCP_REQ pReq, PPOOL_CTX pCtx);
 #ifdef __cplusplus
diff --git a/srcs/service/dhcpd/lease.c b/srcs/service/dhcpd/lease.c
index 3febe7d..a713f99 100644
--- a/srcs/service/dhcpd/lease.c
+++ b/srcs/service/dhcpd/lease.c
@@ -20,7 +20,7 @@ U32 lease_is_pre_assign(PDHCP_REQ pReq) {
     U32  ipAddr;
 
     MAC_TO_STR(pReq->cliMac, macStr);
-    if (lease_get_pre_assign(pReq->uid, macStr, pReq->hostName, &ipAddr) == ERR_ITEM_EXISTS) {
+    if (db_get_pre_assign(pReq->uid, macStr, pReq->hostName, &ipAddr) == ERR_ITEM_EXISTS) {
         return ipAddr;
     }
 
@@ -62,11 +62,11 @@ int lease_add_host(PDHCP_REQ pReq) {
 
 int is_pre_assigned(PDHCP_REQ pReq, PPOOL_CTX pCtx) {
     // 首先从租约信息中获取数据
-    if (lease_get_from_lease(pReq, pCtx) == ERR_SUCCESS) {
+    if (db_get_lease(pReq, pCtx) == ERR_SUCCESS) {
         return ERR_SUCCESS;
     }
     // 从预分配IP中获取信息
-    return lease_get_from_pre_assign(pReq, pCtx);
+    return db_get_pre_lease(pReq, pCtx);
 }
 
 int lease_release(PDHCP_REQ pReq) {
@@ -100,12 +100,12 @@ int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX
 
             // 该 IP 可用
             if (pLock == NULL) {
-                if (lease_ip_is_pre_assign(pReq->uid, addr) == FALSE) {
+                if (db_ip_is_pre_assign(pReq->uid, addr) == FALSE) {
                     usr_lease_lock_ip(pUser, addr);
                     *pOutIp   = addr;
                     *pOutPool = pPool;
 
-                    lease_db_add_pre_assign(pReq, addr, pPool);
+                    db_add_pre_assign(pReq, addr, pPool);
 
                     return ERR_SUCCESS;
                 }
@@ -116,7 +116,7 @@ int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX
     }
 
     // 清理所有超时的预分配IP
-    lease_clearup_timeout_items();
+    db_clearup_timeout_lease();
     // 没有可预分配的IP，报错
     //LOG_MOD(error, ZM_DHCP_LEASE, "No free ipaddress in poll:  uid = %u, pool = %p\n", pReq->uid, pUser->pUserPool);
     return -ERR_DHCP_NO_ADDR;
@@ -125,16 +125,16 @@ int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX
 int dhcp_lease_init() {
     int rc;
 
-    rc = lease_init_database();
+    rc = db_init_lease_database();
 
     if (rc != ERR_SUCCESS) {
         return rc;
     }
 
     // 清理所有超时的预分配IP
-    lease_clearup_timeout_items();
+    db_clearup_timeout_lease();
 
     // lock 预分配 IP
-    lease_lock_pre_assign_ip();
+    db_lock_pre_assign_ip();
     return ERR_SUCCESS;
 }
\ No newline at end of file