diff --git a/src/core/config/dhcp6_client.h b/src/core/config/dhcp6_client.h
index c80503422..9b50636e1 100644
--- a/src/core/config/dhcp6_client.h
+++ b/src/core/config/dhcp6_client.h
@@ -45,6 +45,16 @@
 #define OPENTHREAD_CONFIG_DHCP6_CLIENT_ENABLE 0
 #endif
 
+/**
+ * @def OPENTHREAD_CONFIG_DHCP6_MULTICAST_SOLICIT
+ *
+ * Define to 1 to enable DHCPv6 multicast solicit.
+ *
+ */
+#ifndef OPENTHREAD_ENABLE_DHCP6_MULTICAST_SOLICIT
+#define OPENTHREAD_ENABLE_DHCP6_MULTICAST_SOLICIT 0
+#endif
+
 /**
  * @def OPENTHREAD_CONFIG_DHCP6_CLIENT_NUM_PREFIXES
  *
diff --git a/src/core/config/openthread-core-config-check.h b/src/core/config/openthread-core-config-check.h
index 94f941f91..86bb5bafc 100644
--- a/src/core/config/openthread-core-config-check.h
+++ b/src/core/config/openthread-core-config-check.h
@@ -38,6 +38,10 @@
 #error "OPENTHREAD_CONFIG_PLATFORM_UDP_ENABLE and OPENTHREAD_CONFIG_UDP_FORWARD_ENABLE must not both be set."
 #endif
 
+#if OPENTHREAD_ENABLE_DHCP6_MULTICAST_SOLICIT && !OPENTHREAD_CONFIG_DHCP6_CLIENT_ENABLE
+#error "OPENTHREAD_ENABLE_DHCP6_MULTICAST_SOLICIT requires OPENTHREAD_CONFIG_DHCP6_CLIENT_ENABLE to be also set."
+#endif
+
 /*
  * Removed or replaced OPENTHREAD_CONFIG options.
  *
diff --git a/src/core/net/dhcp6.hpp b/src/core/net/dhcp6.hpp
index 5251cfd4a..875e766e6 100644
--- a/src/core/net/dhcp6.hpp
+++ b/src/core/net/dhcp6.hpp
@@ -61,11 +61,13 @@ using ot::Encoding::BigEndian::HostSwap32;
  */
 enum
 {
-    kDhcpClientPort      = 546,
-    kDhcpServerPort      = 547,
-    kTransactionIdSize   = 3,
-    kLinkLayerAddressLen = 8,
-    kHardwareTypeEui64   = 27,
+    kDhcpClientPort          = 546,
+    kDhcpServerPort          = 547,
+    kTransactionIdSize       = 3,
+    kLinkLayerAddressLen     = 8,
+    kHardwareTypeEui64       = 27,
+    kHardwareTypeEthernet    = 1,
+    kLinkLayerAddressPlusLen = 6,
 };
 
 /**
diff --git a/src/core/net/dhcp6_client.cpp b/src/core/net/dhcp6_client.cpp
index da20f5dfe..a10e4c867 100644
--- a/src/core/net/dhcp6_client.cpp
+++ b/src/core/net/dhcp6_client.cpp
@@ -275,12 +275,17 @@ otError Dhcp6Client::Solicit(uint16_t aRloc16)
     SuccessOrExit(error = AppendIaAddress(*message, aRloc16));
     SuccessOrExit(error = AppendRapidCommit(*message));
 
+#if OPENTHREAD_ENABLE_DHCP6_MULTICAST_SOLICIT
+    messageInfo.GetPeerAddr().mFields.m16[0] = HostSwap16(0xff03);
+    messageInfo.GetPeerAddr().mFields.m16[7] = HostSwap16(0x0002);
+#else
     memcpy(messageInfo.GetPeerAddr().mFields.m8, Get<Mle::MleRouter>().GetMeshLocalPrefix().m8,
            sizeof(otMeshLocalPrefix));
     messageInfo.GetPeerAddr().mFields.m16[4] = HostSwap16(0x0000);
     messageInfo.GetPeerAddr().mFields.m16[5] = HostSwap16(0x00ff);
     messageInfo.GetPeerAddr().mFields.m16[6] = HostSwap16(0xfe00);
     messageInfo.GetPeerAddr().mFields.m16[7] = HostSwap16(aRloc16);
+#endif
     messageInfo.SetSockAddr(Get<Mle::MleRouter>().GetMeshLocal16());
     messageInfo.mPeerPort = kDhcpServerPort;
 
@@ -432,6 +437,11 @@ void Dhcp6Client::ProcessReply(Message &aMessage)
     uint16_t length = aMessage.GetLength() - aMessage.GetOffset();
     uint16_t optionOffset;
 
+    if ((optionOffset = FindOption(aMessage, offset, length, kOptionStatusCode)) > 0)
+    {
+        SuccessOrExit(ProcessStatusCode(aMessage, optionOffset));
+    }
+
     // Server Identifier
     VerifyOrExit((optionOffset = FindOption(aMessage, offset, length, kOptionServerIdentifier)) > 0);
     SuccessOrExit(ProcessServerIdentifier(aMessage, optionOffset));
@@ -480,9 +490,10 @@ otError Dhcp6Client::ProcessServerIdentifier(Message &aMessage, uint16_t aOffset
     otError          error = OT_ERROR_NONE;
     ServerIdentifier option;
 
-    VerifyOrExit(((aMessage.Read(aOffset, sizeof(option), &option) == sizeof(option)) &&
-                  (option.GetLength() == (sizeof(option) - sizeof(Dhcp6Option))) && (option.GetDuidType() == kDuidLL) &&
-                  (option.GetDuidHardwareType() == kHardwareTypeEui64)),
+    VerifyOrExit((aMessage.Read(aOffset, sizeof(option), &option) == sizeof(option)));
+    VerifyOrExit(((option.GetDuidType() == kDuidLLT) && (option.GetDuidHardwareType() == kHardwareTypeEthernet)) ||
+                     ((option.GetLength() == (sizeof(option) - sizeof(Dhcp6Option))) &&
+                      (option.GetDuidType() == kDuidLL) && (option.GetDuidHardwareType() == kHardwareTypeEui64)),
                  error = OT_ERROR_PARSE);
 exit:
     return error;
@@ -546,8 +557,8 @@ otError Dhcp6Client::ProcessStatusCode(Message &aMessage, uint16_t aOffset)
     otError    error = OT_ERROR_NONE;
     StatusCode option;
 
-    VerifyOrExit(((aMessage.Read(aOffset, sizeof(option), &option) == sizeof(option)) &&
-                  (option.GetLength() == (sizeof(option) - sizeof(Dhcp6Option))) &&
+    VerifyOrExit(((aMessage.Read(aOffset, sizeof(option), &option) >= sizeof(option)) &&
+                  (option.GetLength() >= (sizeof(option) - sizeof(Dhcp6Option))) &&
                   (option.GetStatusCode() == kStatusSuccess)),
                  error = OT_ERROR_PARSE);