diff --git a/src/packet/common.rs b/src/packet/common.rs
index d403687..18fc188 100644
--- a/src/packet/common.rs
+++ b/src/packet/common.rs
@@ -117,6 +117,8 @@ pub fn encode_packet<T: serde::Serialize>(cmn: &Common, pkt: &T) -> Result<Vec<u
 
     let content = serde_json::to_vec(pkt)?;
 
+    dbg!(std::str::from_utf8(&content));
+
     let size = content.len() as u32;
     // add size bytes
     res.extend_from_slice(&size.to_be_bytes());
diff --git a/src/packet/register_super.rs b/src/packet/register_super.rs
index 9359d24..c1122f4 100644
--- a/src/packet/register_super.rs
+++ b/src/packet/register_super.rs
@@ -7,7 +7,7 @@ pub struct RegisterSuper<'a> {
     // pass, 用于给registersuper一个初步的雁阵，固定8位
     pub pass: &'a str,
     // 自身的sock信息
-    pub sock: peer::SdlanSock,
+    pub sock: Option<peer::SdlanSock>,
 
     // 自身的ip信息
     pub dev_addr: peer::IpSubnet,
@@ -44,14 +44,14 @@ mod test {
         };
         let pkt1 = RegisterSuper {
             pass: "encrypt!",
-            sock: SdlanSock {
+            sock: Some(SdlanSock {
                 family: 0,
                 port: 1,
                 has_v6: true,
                 v6_port: 2345,
                 v4: [0; 4],
                 v6: [1; 16],
-            },
+            }),
             dev_addr: peer::IpSubnet {
                 net_addr: atomic::AtomicU32::new(192),
                 net_bit_len: atomic::AtomicU8::new(24),