diff --git a/components/mlme/core/inc/wlan_mlme_main.h b/components/mlme/core/inc/wlan_mlme_main.h
index 8a6d24b409b4..fa8449c08e38 100644
--- a/components/mlme/core/inc/wlan_mlme_main.h
+++ b/components/mlme/core/inc/wlan_mlme_main.h
@@ -162,28 +162,8 @@ struct tclas_mask {
 	uint8_t classifier_mask;
 	union {
 		struct {
-			uint8_t version;
-			union {
-				struct {
-					uint8_t source[4];
-					uint8_t dest[4];
-					uint16_t src_port;
-					uint16_t dest_port;
-					uint8_t dscp;
-					uint8_t proto;
-					uint8_t reserved;
-				} ip_v4_params;
-				struct {
-					uint8_t source[16];
-					uint8_t dest[16];
-					uint16_t src_port;
-					uint16_t dest_port;
-					uint8_t DSCP;
-					uint8_t next_header;
-					uint8_t flow_label[3];
-				} ip_v6_params;
-			} params;
-		} ip_params; /* classifier_type = 4 */
+			uint8_t reserved[16];
+		} ip_param; /* classifier_type = 4 */
 	} info;
 };
 
diff --git a/core/mac/src/cfg/cfgUtil/dot11f.frms b/core/mac/src/cfg/cfgUtil/dot11f.frms
index 6e298871e8cb..fc985a5a4e5b 100644
--- a/core/mac/src/cfg/cfgUtil/dot11f.frms
+++ b/core/mac/src/cfg/cfgUtil/dot11f.frms
@@ -2930,32 +2930,9 @@ IE tclas_mask (EID_EXTN_ID_ELEMENT) OUI (0x59)
     classifier_mask, 1;
     UNION info (DISCRIMINATOR classifier_type)
     {
-        IpParams (classifier_type IS 4)
+        ip_param (classifier_type IS 4)
         {
-            version, 1;
-            UNION params (DISCRIMINATOR version)
-            {
-                IpV4Params (version IS 4)
-                {
-                    source[4];
-                    dest[4];
-                    src_port, 2;
-                    dest_port, 2;
-                    DSCP, 1;
-                    proto, 1;
-                    reserved, 1;
-                }
-                IpV6Params (version IS 6)
-                {
-                    source[16];
-                    dest[16];
-                    src_port, 2;
-                    dest_port, 2;
-                    DSCP, 1;
-                    next_header, 1;
-                    flow_label[3];
-                }
-            };
+            reserved[16];
         }
     };
 }
diff --git a/core/mac/src/include/dot11f.h b/core/mac/src/include/dot11f.h
index 3b5172aa84f5..bd437abe2c95 100644
--- a/core/mac/src/include/dot11f.h
+++ b/core/mac/src/include/dot11f.h
@@ -4603,28 +4603,8 @@ typedef struct sDot11fIEtclas_mask {
 	uint8_t             classifier_mask;
 	union {
 		struct {
-			uint8_t version;
-			union {
-				struct {
-					uint8_t source[4];
-					uint8_t dest[4];
-					uint16_t src_port;
-					uint16_t dest_port;
-					uint8_t DSCP;
-					uint8_t proto;
-					uint8_t reserved;
-				} IpV4Params; /* version = 4 */
-				struct {
-					uint8_t source[16];
-					uint8_t dest[16];
-					uint16_t src_port;
-					uint16_t dest_port;
-					uint8_t DSCP;
-					uint8_t next_header;
-					uint8_t flow_label[3];
-				} IpV6Params; /* version = 6 */
-			} params;
-		} IpParams; /* classifier_type = 4 */
+			uint8_t reserved[16];
+		} ip_param; /* classifier_type = 4 */
 	} info;
 } tDot11fIEtclas_mask;
 
@@ -4633,7 +4613,7 @@ typedef struct sDot11fIEtclas_mask {
 /* N.B. These #defines do *not* include the EID & length */
 #define DOT11F_IE_TCLAS_MASK_MIN_LEN (18)
 
-#define DOT11F_IE_TCLAS_MASK_MAX_LEN (44)
+#define DOT11F_IE_TCLAS_MASK_MAX_LEN (18)
 
 #ifdef __cplusplus
 extern "C" {
@@ -8684,7 +8664,7 @@ typedef struct sDot11fIEdecriptor_element {
 /* N.B. These #defines do *not* include the EID & length */
 #define DOT11F_IE_DECRIPTOR_ELEMENT_MIN_LEN (7)
 
-#define DOT11F_IE_DECRIPTOR_ELEMENT_MAX_LEN (56)
+#define DOT11F_IE_DECRIPTOR_ELEMENT_MAX_LEN (30)
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/core/mac/src/sys/legacy/src/utils/src/dot11f.c b/core/mac/src/sys/legacy/src/utils/src/dot11f.c
index 2e94fd036800..b8f0af688611 100644
--- a/core/mac/src/sys/legacy/src/utils/src/dot11f.c
+++ b/core/mac/src/sys/legacy/src/utils/src/dot11f.c
@@ -3841,132 +3841,14 @@ uint32_t dot11f_unpack_ie_tclas_mask(tpAniSirGlobal pCtx,
 	ielen -= (uint8_t)1;
 	switch (pDst->classifier_type) {
 	case 4:
-		if (unlikely(ielen < 1)) {
+		if (unlikely(ielen < 16)) {
 			pDst->present = 0;
 			return DOT11F_INCOMPLETE_IE;
 		}
 
-		pDst->info.IpParams.version = *pBuf;
-		pBuf += 1;
-		ielen -= (uint8_t)1;
-		switch (pDst->info.IpParams.version) {
-		case 4:
-			if (unlikely(ielen < 4)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			DOT11F_MEMCPY(pCtx, pDst->info.IpParams.params.IpV4Params.source, pBuf, 4);
-			pBuf += 4;
-			ielen -= (uint8_t)4;
-			if (unlikely(ielen < 4)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			DOT11F_MEMCPY(pCtx, pDst->info.IpParams.params.IpV4Params.dest, pBuf, 4);
-			pBuf += 4;
-			ielen -= (uint8_t)4;
-			if (unlikely(ielen < 2)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			framesntohs(pCtx, &pDst->info.IpParams.params.IpV4Params.src_port, pBuf, 0);
-			pBuf += 2;
-			ielen -= (uint8_t)2;
-			if (unlikely(ielen < 2)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			framesntohs(pCtx, &pDst->info.IpParams.params.IpV4Params.dest_port, pBuf, 0);
-			pBuf += 2;
-			ielen -= (uint8_t)2;
-			if (unlikely(ielen < 1)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			pDst->info.IpParams.params.IpV4Params.DSCP = *pBuf;
-			pBuf += 1;
-			ielen -= (uint8_t)1;
-			if (unlikely(ielen < 1)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			pDst->info.IpParams.params.IpV4Params.proto = *pBuf;
-			pBuf += 1;
-			ielen -= (uint8_t)1;
-			if (unlikely(ielen < 1)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			pDst->info.IpParams.params.IpV4Params.reserved = *pBuf;
-			pBuf += 1;
-			ielen -= (uint8_t)1;
-			break;
-		case 6:
-			if (unlikely(ielen < 16)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			DOT11F_MEMCPY(pCtx, pDst->info.IpParams.params.IpV6Params.source, pBuf, 16);
-			pBuf += 16;
-			ielen -= (uint8_t)16;
-			if (unlikely(ielen < 16)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			DOT11F_MEMCPY(pCtx, pDst->info.IpParams.params.IpV6Params.dest, pBuf, 16);
-			pBuf += 16;
-			ielen -= (uint8_t)16;
-			if (unlikely(ielen < 2)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			framesntohs(pCtx, &pDst->info.IpParams.params.IpV6Params.src_port, pBuf, 0);
-			pBuf += 2;
-			ielen -= (uint8_t)2;
-			if (unlikely(ielen < 2)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			framesntohs(pCtx, &pDst->info.IpParams.params.IpV6Params.dest_port, pBuf, 0);
-			pBuf += 2;
-			ielen -= (uint8_t)2;
-			if (unlikely(ielen < 1)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			pDst->info.IpParams.params.IpV6Params.DSCP = *pBuf;
-			pBuf += 1;
-			ielen -= (uint8_t)1;
-			if (unlikely(ielen < 1)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			pDst->info.IpParams.params.IpV6Params.next_header = *pBuf;
-			pBuf += 1;
-			ielen -= (uint8_t)1;
-			if (unlikely(ielen < 3)) {
-				pDst->present = 0;
-				return DOT11F_INCOMPLETE_IE;
-			}
-
-			DOT11F_MEMCPY(pCtx, pDst->info.IpParams.params.IpV6Params.flow_label, pBuf, 3);
-			pBuf += 3;
-			ielen -= (uint8_t)3;
-			break;
-		}
+		DOT11F_MEMCPY(pCtx, pDst->info.ip_param.reserved, pBuf, 16);
+		pBuf += 16;
+		ielen -= (uint8_t)16;
 		break;
 	}
 	(void)pCtx;
@@ -8605,7 +8487,7 @@ static const tFFDefn FFS_decriptor_element[] = {
 static const tIEDefn IES_decriptor_element[] = {
 	{ offsetof(tDot11fIEdecriptor_element, tclas_mask),
 	offsetof(tDot11fIEtclas_mask, present), 0, "tclas_mask",
-	0, 20, 46, SigIetclas_mask, {0, 0, 0, 0, 0},
+	0, 20, 20, SigIetclas_mask, {0, 0, 0, 0, 0},
 	0, DOT11F_EID_TCLAS_MASK, 89, 0, },
 	{ offsetof(tDot11fIEdecriptor_element, mscs_status),
 	offsetof(tDot11fIEmscs_status, present), 0, "mscs_status",
@@ -13221,7 +13103,7 @@ static const tFFDefn FFS_mscs_request_action_frame[] = {
 static const tIEDefn IES_mscs_request_action_frame[] = {
 	{ offsetof(tDot11fmscs_request_action_frame, decriptor_element),
 	offsetof(tDot11fIEdecriptor_element, present), 0, "decriptor_element",
-	0, 9, 58, SigIedecriptor_element, {0, 0, 0, 0, 0},
+	0, 9, 32, SigIedecriptor_element, {0, 0, 0, 0, 0},
 	0, DOT11F_EID_DECRIPTOR_ELEMENT, 88, 1, },
 	{0, 0, 0, NULL, 0, 0, 0, 0, {0, 0, 0, 0, 0}, 0, 0xff, 0, },};
 
@@ -16024,27 +15906,7 @@ uint32_t dot11f_get_packed_ie_tclas_mask(tpAniSirGlobal pCtx,
 		*pnNeeded += 1;
 		switch (pIe->classifier_type) {
 		case 4:
-			*pnNeeded += 1;
-			switch (pIe->info.IpParams.version) {
-			case 4:
-				*pnNeeded += 4;
-				*pnNeeded += 4;
-				*pnNeeded += 2;
-				*pnNeeded += 2;
-				*pnNeeded += 1;
-				*pnNeeded += 1;
-				*pnNeeded += 1;
-				break;
-			case 6:
-				*pnNeeded += 16;
-				*pnNeeded += 16;
-				*pnNeeded += 2;
-				*pnNeeded += 2;
-				*pnNeeded += 1;
-				*pnNeeded += 1;
-				*pnNeeded += 3;
-				break;
-			}
+			*pnNeeded += 16;
 			break;
 		}
 		break;
@@ -22724,57 +22586,9 @@ uint32_t dot11f_pack_ie_tclas_mask(tpAniSirGlobal pCtx,
 		pBuf += 1;
 		switch (pSrc->classifier_type) {
 		case 4:
-			*pBuf = pSrc->info.IpParams.version;
-			*pnConsumed += 1;
-			pBuf += 1;
-			switch (pSrc->info.IpParams.version) {
-			case 4:
-				DOT11F_MEMCPY(pCtx, pBuf, pSrc->info.IpParams.params.IpV4Params.source, 4);
-				*pnConsumed += 4;
-				pBuf += 4;
-				DOT11F_MEMCPY(pCtx, pBuf, pSrc->info.IpParams.params.IpV4Params.dest, 4);
-				*pnConsumed += 4;
-				pBuf += 4;
-				frameshtons(pCtx, pBuf, pSrc->info.IpParams.params.IpV4Params.src_port, 0);
-				*pnConsumed += 2;
-				pBuf += 2;
-				frameshtons(pCtx, pBuf, pSrc->info.IpParams.params.IpV4Params.dest_port, 0);
-				*pnConsumed += 2;
-				pBuf += 2;
-				*pBuf = pSrc->info.IpParams.params.IpV4Params.DSCP;
-				*pnConsumed += 1;
-				pBuf += 1;
-				*pBuf = pSrc->info.IpParams.params.IpV4Params.proto;
-				*pnConsumed += 1;
-				pBuf += 1;
-				*pBuf = pSrc->info.IpParams.params.IpV4Params.reserved;
-				*pnConsumed += 1;
-				/* fieldsEndFlag = 1 */
-				break;
-			case 6:
-				DOT11F_MEMCPY(pCtx, pBuf, pSrc->info.IpParams.params.IpV6Params.source, 16);
-				*pnConsumed += 16;
-				pBuf += 16;
-				DOT11F_MEMCPY(pCtx, pBuf, pSrc->info.IpParams.params.IpV6Params.dest, 16);
-				*pnConsumed += 16;
-				pBuf += 16;
-				frameshtons(pCtx, pBuf, pSrc->info.IpParams.params.IpV6Params.src_port, 0);
-				*pnConsumed += 2;
-				pBuf += 2;
-				frameshtons(pCtx, pBuf, pSrc->info.IpParams.params.IpV6Params.dest_port, 0);
-				*pnConsumed += 2;
-				pBuf += 2;
-				*pBuf = pSrc->info.IpParams.params.IpV6Params.DSCP;
-				*pnConsumed += 1;
-				pBuf += 1;
-				*pBuf = pSrc->info.IpParams.params.IpV6Params.next_header;
-				*pnConsumed += 1;
-				pBuf += 1;
-				DOT11F_MEMCPY(pCtx, pBuf, pSrc->info.IpParams.params.IpV6Params.flow_label, 3);
-				*pnConsumed += 3;
-				/* fieldsEndFlag = 1 */
-				break;
-			}
+			DOT11F_MEMCPY(pCtx, pBuf, pSrc->info.ip_param.reserved, 16);
+			*pnConsumed += 16;
+			/* fieldsEndFlag = 1 */
 			break;
 		}
 		break;