Fix auto redirect pre-match and L3 forwarding

route/route.go

@@ -403,6 +403,9 @@ func (r *Router) PreMatch(metadata adapter.InboundContext, firstPacket []byte) a
 			return result
 		case *R.RuleActionReject:
 			rejectErr := action.Error(r.ctx)
+			if rejectErr == nil && metadata.Network == N.NetworkICMP {
+				return continueResult
+			}
 			if errors.Is(rejectErr, R.ErrDrop) {
 				return adapter.PreMatchResult{Action: adapter.PreMatchDrop}
 			}