14.04.2026 Update

handlers/dhcp.go

@@ -2,11 +2,12 @@ package handlers
 
 import (
 	"encoding/json"
+	"fmt"
 	"net/http"
 
-	"alpine-router/config"
-	"alpine-router/dhcp"
-	"alpine-router/network"
+	"nano-router/config"
+	"nano-router/dhcp"
+	"nano-router/network"
 )
 
 func HandleDHCPStatus(w http.ResponseWriter, r *http.Request) {
@@ -90,6 +91,14 @@ func HandleDHCPConfigSave(w http.ResponseWriter, r *http.Request) {
 	if cfg.Pools == nil {
 		cfg.Pools = []dhcp.Pool{}
 	}
+	for _, pool := range cfg.Pools {
+		if pool.Subnet != "" && pool.Netmask != "" {
+			if msg, overlaps := checkDHCPPoolOverlap(pool.Subnet, pool.Netmask, pool.Interface); overlaps {
+				fail(w, http.StatusConflict, fmt.Sprintf("Пул интерфейса %s: %s", pool.Interface, msg))
+				return
+			}
+		}
+	}
 	if err := dhcp.Save(&cfg); err != nil {
 		fail(w, http.StatusInternalServerError, err.Error())
 		return