[mio] 修复指定通道类型无效的问题

vnt/src/handle/tun_tap/mod.rs

@@ -151,7 +151,9 @@ pub fn base_handle(
     client_cipher.encrypt_ipv4(&mut net_packet)?;
     //优先发到直连到地址
     if context.send_by_id(net_packet.buffer(), &dest_ip).is_err() {
-        context.send_default(net_packet.buffer(), current_device.connect_server)?;
+        if !context.use_channel_type().is_only_p2p() {
+            context.send_default(net_packet.buffer(), current_device.connect_server)?;
+        }
     }
     return Ok(());
 }