diff --git a/src/core/coap/coap_secure.cpp b/src/core/coap/coap_secure.cpp
index e345c8925..48db9ac85 100644
--- a/src/core/coap/coap_secure.cpp
+++ b/src/core/coap/coap_secure.cpp
@@ -173,7 +173,7 @@ otError CoapSecure::SendMessage(Message &aMessage, ResponseHandler aHandler, voi
 
     VerifyOrExit(IsConnected(), error = OT_ERROR_INVALID_STATE);
 
-    error = CoapBase::SendMessage(aMessage, mDtls.GetPeerAddress(), aHandler, aContext);
+    error = CoapBase::SendMessage(aMessage, mDtls.GetMessageInfo(), aHandler, aContext);
 
 exit:
     return error;
@@ -223,7 +223,7 @@ void CoapSecure::HandleDtlsReceive(uint8_t *aBuf, uint16_t aLength)
                  OT_NOOP);
     SuccessOrExit(message->Append(aBuf, aLength));
 
-    CoapBase::Receive(*message, mDtls.GetPeerAddress());
+    CoapBase::Receive(*message, mDtls.GetMessageInfo());
 
 exit:
 
diff --git a/src/core/coap/coap_secure.hpp b/src/core/coap/coap_secure.hpp
index bb3fc56e9..b8edb9440 100644
--- a/src/core/coap/coap_secure.hpp
+++ b/src/core/coap/coap_secure.hpp
@@ -313,7 +313,7 @@ public:
      * @return DTLS session's message info.
      *
      */
-    const Ip6::MessageInfo &GetPeerAddress(void) const { return mDtls.GetPeerAddress(); }
+    const Ip6::MessageInfo &GetMessageInfo(void) const { return mDtls.GetMessageInfo(); }
 
 private:
     static otError Send(CoapBase &aCoapBase, ot::Message &aMessage, const Ip6::MessageInfo &aMessageInfo)
diff --git a/src/core/meshcop/border_agent.cpp b/src/core/meshcop/border_agent.cpp
index 6661e7196..6f84e27db 100644
--- a/src/core/meshcop/border_agent.cpp
+++ b/src/core/meshcop/border_agent.cpp
@@ -169,7 +169,7 @@ static void SendErrorMessage(Coap::CoapSecure &aCoapSecure, ForwardContext &aFor
 
     VerifyOrExit((message = NewMeshCoPMessage(aCoapSecure)) != nullptr, error = OT_ERROR_NO_BUFS);
     SuccessOrExit(error = aForwardContext.ToHeader(*message, CoapCodeFromError(aError)));
-    SuccessOrExit(error = aCoapSecure.SendMessage(*message, aCoapSecure.GetPeerAddress()));
+    SuccessOrExit(error = aCoapSecure.SendMessage(*message, aCoapSecure.GetMessageInfo()));
 
 exit:
     if (error != OT_ERROR_NONE)
@@ -209,7 +209,7 @@ static void SendErrorMessage(Coap::CoapSecure &   aCoapSecure,
 
     SuccessOrExit(error = message->SetToken(aRequest.GetToken(), aRequest.GetTokenLength()));
 
-    SuccessOrExit(error = aCoapSecure.SendMessage(*message, aCoapSecure.GetPeerAddress()));
+    SuccessOrExit(error = aCoapSecure.SendMessage(*message, aCoapSecure.GetMessageInfo()));
 
 exit:
     if (error != OT_ERROR_NONE)
@@ -463,7 +463,7 @@ bool BorderAgent::HandleUdpReceive(const Message &aMessage, const Ip6::MessageIn
     SuccessOrExit(error =
                       Tlv::AppendTlv(*message, Tlv::kIPv6Address, &aMessageInfo.GetPeerAddr(), sizeof(Ip6::Address)));
 
-    SuccessOrExit(error = Get<Coap::CoapSecure>().SendMessage(*message, Get<Coap::CoapSecure>().GetPeerAddress()));
+    SuccessOrExit(error = Get<Coap::CoapSecure>().SendMessage(*message, Get<Coap::CoapSecure>().GetMessageInfo()));
 
     otLogInfoMeshCoP("Sent to commissioner on %s", OT_URI_PATH_PROXY_RX);
 
@@ -513,7 +513,7 @@ otError BorderAgent::ForwardToCommissioner(Coap::Message &aForwardMessage, const
     aMessage.CopyTo(aMessage.GetOffset(), offset, aMessage.GetLength() - aMessage.GetOffset(), aForwardMessage);
 
     SuccessOrExit(error =
-                      Get<Coap::CoapSecure>().SendMessage(aForwardMessage, Get<Coap::CoapSecure>().GetPeerAddress()));
+                      Get<Coap::CoapSecure>().SendMessage(aForwardMessage, Get<Coap::CoapSecure>().GetMessageInfo()));
 
     otLogInfoMeshCoP("Sent to commissioner");
 
diff --git a/src/core/meshcop/dtls.cpp b/src/core/meshcop/dtls.cpp
index 2569ed91a..9364f1529 100644
--- a/src/core/meshcop/dtls.cpp
+++ b/src/core/meshcop/dtls.cpp
@@ -45,7 +45,6 @@
 #include "common/instance.hpp"
 #include "common/locator-getters.hpp"
 #include "common/logging.hpp"
-#include "common/new.hpp"
 #include "common/timer.hpp"
 #include "crypto/mbedtls.hpp"
 #include "crypto/sha256.hpp"
@@ -150,8 +149,8 @@ otError Dtls::Connect(const Ip6::SockAddr &aSockAddr)
 
     VerifyOrExit(mState == kStateOpen, error = OT_ERROR_INVALID_STATE);
 
-    memcpy(&mPeerAddress.mPeerAddr, &aSockAddr.mAddress, sizeof(mPeerAddress.mPeerAddr));
-    mPeerAddress.mPeerPort = aSockAddr.mPort;
+    mMessageInfo.SetPeerAddr(aSockAddr.GetAddress());
+    mMessageInfo.SetPeerPort(aSockAddr.mPort);
 
     error = Setup(true);
 
@@ -180,16 +179,16 @@ void Dtls::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageI
         sockAddr.mPort    = aMessageInfo.GetPeerPort();
         IgnoreError(mSocket.Connect(sockAddr));
 
-        mPeerAddress.SetPeerAddr(aMessageInfo.GetPeerAddr());
-        mPeerAddress.SetPeerPort(aMessageInfo.GetPeerPort());
-        mPeerAddress.SetIsHostInterface(aMessageInfo.IsHostInterface());
+        mMessageInfo.SetPeerAddr(aMessageInfo.GetPeerAddr());
+        mMessageInfo.SetPeerPort(aMessageInfo.GetPeerPort());
+        mMessageInfo.SetIsHostInterface(aMessageInfo.IsHostInterface());
 
         if (Get<ThreadNetif>().HasUnicastAddress(aMessageInfo.GetSockAddr()))
         {
-            mPeerAddress.SetSockAddr(aMessageInfo.GetSockAddr());
+            mMessageInfo.SetSockAddr(aMessageInfo.GetSockAddr());
         }
 
-        mPeerAddress.SetSockPort(aMessageInfo.GetSockPort());
+        mMessageInfo.SetSockPort(aMessageInfo.GetSockPort());
 
         SuccessOrExit(Setup(false));
         break;
@@ -197,8 +196,8 @@ void Dtls::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageI
 
     default:
         // Once DTLS session is started, communicate only with a peer.
-        VerifyOrExit((mPeerAddress.GetPeerAddr() == aMessageInfo.GetPeerAddr()) &&
-                         (mPeerAddress.GetPeerPort() == aMessageInfo.GetPeerPort()),
+        VerifyOrExit((mMessageInfo.GetPeerAddr() == aMessageInfo.GetPeerAddr()) &&
+                         (mMessageInfo.GetPeerPort() == aMessageInfo.GetPeerPort()),
                      OT_NOOP);
         break;
     }
@@ -206,7 +205,7 @@ void Dtls::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageI
 #ifdef MBEDTLS_SSL_SRV_C
     if (mState == MeshCoP::Dtls::kStateConnecting)
     {
-        IgnoreError(SetClientId(mPeerAddress.GetPeerAddr().mFields.m8, sizeof(mPeerAddress.GetPeerAddr().mFields)));
+        IgnoreError(SetClientId(mMessageInfo.GetPeerAddr().mFields.m8, sizeof(mMessageInfo.GetPeerAddr().mFields)));
     }
 #endif
 
@@ -432,7 +431,7 @@ void Dtls::Disconnect(void)
     mState = kStateCloseNotify;
     mTimer.Start(kGuardTimeNewConnectionMilli);
 
-    new (&mPeerAddress) Ip6::MessageInfo();
+    mMessageInfo.Clear();
     IgnoreError(mSocket.Connect(Ip6::SockAddr()));
 
     FreeMbedtls();
@@ -933,11 +932,11 @@ otError Dtls::HandleDtlsSend(const uint8_t *aBuf, uint16_t aLength, Message::Sub
 
     if (mTransportCallback)
     {
-        SuccessOrExit(error = mTransportCallback(mTransportContext, *message, mPeerAddress));
+        SuccessOrExit(error = mTransportCallback(mTransportContext, *message, mMessageInfo));
     }
     else
     {
-        SuccessOrExit(error = mSocket.SendTo(*message, mPeerAddress));
+        SuccessOrExit(error = mSocket.SendTo(*message, mMessageInfo));
     }
 
 exit:
diff --git a/src/core/meshcop/dtls.hpp b/src/core/meshcop/dtls.hpp
index e5b1c03c6..8aebbc216 100644
--- a/src/core/meshcop/dtls.hpp
+++ b/src/core/meshcop/dtls.hpp
@@ -332,7 +332,7 @@ public:
      * @return DTLS session's message info.
      *
      */
-    const Ip6::MessageInfo &GetPeerAddress(void) const { return mPeerAddress; }
+    const Ip6::MessageInfo &GetMessageInfo(void) const { return mMessageInfo; }
 
     void HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageInfo);
 
@@ -460,7 +460,7 @@ private:
     ReceiveHandler   mReceiveHandler;
     void *           mContext;
 
-    Ip6::MessageInfo mPeerAddress;
+    Ip6::MessageInfo mMessageInfo;
     Ip6::Udp::Socket mSocket;
 
     TransportCallback mTransportCallback;
diff --git a/src/core/net/socket.hpp b/src/core/net/socket.hpp
index 869406a36..a47cde413 100644
--- a/src/core/net/socket.hpp
+++ b/src/core/net/socket.hpp
@@ -53,14 +53,14 @@ namespace Ip6 {
  * This class implements message information for an IPv6 message.
  *
  */
-class MessageInfo : public otMessageInfo
+class MessageInfo : public otMessageInfo, public Clearable<MessageInfo>
 {
 public:
     /**
      * This constructor initializes the object.
      *
      */
-    MessageInfo(void) { memset(this, 0, sizeof(*this)); }
+    MessageInfo(void) { Clear(); }
 
     /**
      * This method returns a reference to the local socket address.