diff --git a/trace/udp.go b/trace/udp.go
index 3f68401..81e3716 100644
--- a/trace/udp.go
+++ b/trace/udp.go
@@ -54,7 +54,7 @@ func (t *UDPTracer) Execute() (*Result, error) {
 	go t.listenICMP()
 
 	t.sem = semaphore.NewWeighted(int64(t.ParallelRequests))
-	for ttl := 1; ttl <= t.MaxHops; ttl++ {
+	for ttl := t.BeginHop; ttl <= t.MaxHops; ttl++ {
 		// 如果到达最终跳，则退出
 		if t.final != -1 && ttl > t.final {
 			break