diff --git a/include/net/net_ip.h b/include/net/net_ip.h
index f9e62129a9e..295eff1c9f8 100644
--- a/include/net/net_ip.h
+++ b/include/net/net_ip.h
@@ -316,10 +316,10 @@ struct net_tcp_hdr {
  */
 static inline bool net_is_ipv6_addr_loopback(struct in6_addr *addr)
 {
-	return addr->s6_addr32[0] == 0 &&
-		addr->s6_addr32[1] == 0 &&
-		addr->s6_addr32[2] == 0 &&
-		ntohl(addr->s6_addr32[3]) == 1;
+	return UNALIGNED_GET(&addr->s6_addr32[0]) == 0 &&
+		UNALIGNED_GET(&addr->s6_addr32[1]) == 0 &&
+		UNALIGNED_GET(&addr->s6_addr32[2]) == 0 &&
+		ntohl(UNALIGNED_GET(&addr->s6_addr32[3])) == 1;
 }
 
 /**
@@ -508,8 +508,7 @@ static inline bool net_ipv6_addr_cmp(const struct in6_addr *addr1,
  */
 static inline bool net_is_ipv6_ll_addr(const struct in6_addr *addr)
 {
-	return ((addr->s6_addr[0]) == 0xFE) &&
-		((addr->s6_addr[1]) == 0x80);
+	return UNALIGNED_GET(&addr->s6_addr16[0]) == htons(0xFE80);
 }
 
 /**
@@ -561,8 +560,10 @@ static inline bool net_ipv4_addr_mask_cmp(struct net_if *iface,
  */
 static inline bool net_is_ipv6_addr_unspecified(const struct in6_addr *addr)
 {
-	return addr->s6_addr32[0] == 0 && addr->s6_addr32[1] == 0 &&
-		addr->s6_addr32[2] == 0 && addr->s6_addr32[3] == 0;
+	return UNALIGNED_GET(&addr->s6_addr32[0]) == 0 &&
+		UNALIGNED_GET(&addr->s6_addr32[1]) == 0 &&
+		UNALIGNED_GET(&addr->s6_addr32[2]) == 0 &&
+		UNALIGNED_GET(&addr->s6_addr32[3]) == 0;
 }
 
 /**
@@ -575,10 +576,11 @@ static inline bool net_is_ipv6_addr_unspecified(const struct in6_addr *addr)
  */
 static inline bool net_is_ipv6_addr_solicited_node(const struct in6_addr *addr)
 {
-	return addr->s6_addr32[0] == htonl(0xff020000) &&
-		addr->s6_addr32[1] == 0x00000000 &&
-		addr->s6_addr32[2] == htonl(0x00000001) &&
-		((addr->s6_addr32[3] & htonl(0xff000000)) == htonl(0xff000000));
+	return UNALIGNED_GET(&addr->s6_addr32[0]) == htonl(0xff020000) &&
+		UNALIGNED_GET(&addr->s6_addr32[1]) == 0x00000000 &&
+		UNALIGNED_GET(&addr->s6_addr32[2]) == htonl(0x00000001) &&
+		((UNALIGNED_GET(&addr->s6_addr32[3]) & htonl(0xff000000)) ==
+		 htonl(0xff000000));
 }
 
 /**
@@ -607,15 +609,15 @@ void net_ipv6_addr_create_solicited_node(const struct in6_addr *src,
 {
 	dst->s6_addr[0]   = 0xFF;
 	dst->s6_addr[1]   = 0x02;
-	dst->s6_addr16[1] = 0;
-	dst->s6_addr16[2] = 0;
-	dst->s6_addr16[3] = 0;
-	dst->s6_addr16[4] = 0;
+	UNALIGNED_PUT(0, &dst->s6_addr16[1]);
+	UNALIGNED_PUT(0, &dst->s6_addr16[2]);
+	UNALIGNED_PUT(0, &dst->s6_addr16[3]);
+	UNALIGNED_PUT(0, &dst->s6_addr16[4]);
 	dst->s6_addr[10]  = 0;
 	dst->s6_addr[11]  = 0x01;
 	dst->s6_addr[12]  = 0xFF;
 	dst->s6_addr[13]  = src->s6_addr[13];
-	dst->s6_addr16[7] = src->s6_addr16[7];
+	UNALIGNED_PUT(UNALIGNED_GET(&src->s6_addr16[7]), &dst->s6_addr16[7]);
 }
 
 /** @brief Construct an IPv6 address from eight 16-bit words.
@@ -636,14 +638,14 @@ static inline void net_ipv6_addr_create(struct in6_addr *addr,
 					uint16_t addr4, uint16_t addr5,
 					uint16_t addr6, uint16_t addr7)
 {
-	addr->s6_addr16[0] = htons(addr0);
-	addr->s6_addr16[1] = htons(addr1);
-	addr->s6_addr16[2] = htons(addr2);
-	addr->s6_addr16[3] = htons(addr3);
-	addr->s6_addr16[4] = htons(addr4);
-	addr->s6_addr16[5] = htons(addr5);
-	addr->s6_addr16[6] = htons(addr6);
-	addr->s6_addr16[7] = htons(addr7);
+	UNALIGNED_PUT(htons(addr0), &addr->s6_addr16[0]);
+	UNALIGNED_PUT(htons(addr1), &addr->s6_addr16[1]);
+	UNALIGNED_PUT(htons(addr2), &addr->s6_addr16[2]);
+	UNALIGNED_PUT(htons(addr3), &addr->s6_addr16[3]);
+	UNALIGNED_PUT(htons(addr4), &addr->s6_addr16[4]);
+	UNALIGNED_PUT(htons(addr5), &addr->s6_addr16[5]);
+	UNALIGNED_PUT(htons(addr6), &addr->s6_addr16[6]);
+	UNALIGNED_PUT(htons(addr7), &addr->s6_addr16[7]);
 }
 
 /**
@@ -667,8 +669,8 @@ static inline void net_ipv6_addr_create_iid(struct in6_addr *addr,
 {
 	addr->s6_addr[0] = 0xfe;
 	addr->s6_addr[1] = 0x80;
-	addr->s6_addr16[1] = 0;
-	addr->s6_addr32[1] = 0;
+	UNALIGNED_PUT(0, &addr->s6_addr16[1]);
+	UNALIGNED_PUT(0, &addr->s6_addr32[1]);
 
 	switch (lladdr->len) {
 	case 2:
@@ -676,7 +678,7 @@ static inline void net_ipv6_addr_create_iid(struct in6_addr *addr,
 		 * Universal/Local bit. RFC 6282 ch 3.2.2
 		 */
 		if (lladdr->type == NET_LINK_IEEE802154) {
-			addr->s6_addr32[2] = 0;
+			UNALIGNED_PUT(0, &addr->s6_addr32[2]);
 			addr->s6_addr[11] = 0xff;
 			addr->s6_addr[12] = 0xfe;
 			addr->s6_addr[13] = 0;
diff --git a/subsys/net/ip/6lo.c b/subsys/net/ip/6lo.c
index f33c29933d4..07c939d9c78 100644
--- a/subsys/net/ip/6lo.c
+++ b/subsys/net/ip/6lo.c
@@ -53,45 +53,36 @@ static struct net_6lo_context ctx_6co[CONFIG_NET_MAX_6LO_CONTEXTS];
 
 static inline bool net_6lo_ll_prefix_padded_with_zeros(struct in6_addr *addr)
 {
-	return ((addr->s6_addr[2] == 0x00) &&
-		 (addr->s6_addr[3] == 0x00) &&
-		 (addr->s6_addr[4] == 0x00) &&
-		 (addr->s6_addr[5] == 0x00) &&
-		 (addr->s6_addr[6] == 0x00) &&
-		 (addr->s6_addr[7] == 0x00));
-
+	return ((UNALIGNED_GET(&addr->s6_addr16[1]) == 0x00) &&
+		 (UNALIGNED_GET(&addr->s6_addr32[1]) == 0x00));
 }
 
 static inline bool net_6lo_addr_16_bit_compressible(struct in6_addr *addr)
 {
-	return ((addr->s6_addr[8] == 0x00) &&
-		 (addr->s6_addr[9] == 0x00) &&
-		 (addr->s6_addr[10] == 0x00) &&
-		 (addr->s6_addr[11] == 0xFF) &&
-		 (addr->s6_addr[12] == 0xFE) &&
-		 (addr->s6_addr[13] == 0x00));
+	return ((UNALIGNED_GET(&addr->s6_addr32[2]) == htonl(0xFF)) &&
+		 (UNALIGNED_GET(&addr->s6_addr16[6]) == htons(0xFE00)));
 }
 
 static inline bool net_6lo_maddr_8_bit_compressible(struct in6_addr *addr)
 {
 	return ((addr->s6_addr[1] == 0x02) &&
-		 (addr->s6_addr16[1] == 0x00) &&
-		 (addr->s6_addr32[1] == 0x00) &&
-		 (addr->s6_addr32[2] == 0x00) &&
+		 (UNALIGNED_GET(&addr->s6_addr16[1]) == 0x00) &&
+		 (UNALIGNED_GET(&addr->s6_addr32[1]) == 0x00) &&
+		 (UNALIGNED_GET(&addr->s6_addr32[2]) == 0x00) &&
 		 (addr->s6_addr[14] == 0x00));
 }
 
 static inline bool net_6lo_maddr_32_bit_compressible(struct in6_addr *addr)
 {
-	return ((addr->s6_addr32[1] == 0x00) &&
-		 (addr->s6_addr32[2] == 0x00) &&
+	return ((UNALIGNED_GET(&addr->s6_addr32[1]) == 0x00) &&
+		 (UNALIGNED_GET(&addr->s6_addr32[2]) == 0x00) &&
 		 (addr->s6_addr[12] == 0x00));
 }
 
 static inline bool net_6lo_maddr_48_bit_compressible(struct in6_addr *addr)
 {
-	return ((addr->s6_addr32[1] == 0x00) &&
-		 (addr->s6_addr16[4] == 0x00) &&
+	return ((UNALIGNED_GET(&addr->s6_addr32[1]) == 0x00) &&
+		 (UNALIGNED_GET(&addr->s6_addr16[4]) == 0x00) &&
 		 (addr->s6_addr[10] == 0x00));
 }
 
diff --git a/subsys/net/ip/connection.c b/subsys/net/ip/connection.c
index 7e1b43f4bfb..56430fb0a7c 100644
--- a/subsys/net/ip/connection.c
+++ b/subsys/net/ip/connection.c
@@ -107,23 +107,23 @@ static inline uint16_t ipv6_to_hash(struct in6_addr *addr)
 	/* Use more bits from the lower part of address space */
 	return
 		/* Take 3 bits from higher values */
-		TAKE_BIT(addr->s6_addr32[0], 31, 11, 1) |
-		TAKE_BIT(addr->s6_addr32[0], 15, 11, 2) |
-		TAKE_BIT(addr->s6_addr32[0], 7, 11, 3) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[0]), 31, 11, 1) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[0]), 15, 11, 2) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[0]), 7, 11, 3) |
 
 		/* Take 2 bits from higher middle values */
-		TAKE_BIT(addr->s6_addr32[1], 31, 11, 4) |
-		TAKE_BIT(addr->s6_addr32[1], 15, 11, 5) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[1]), 31, 11, 4) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[1]), 15, 11, 5) |
 
 		/* Take 2 bits from lower middle values */
-		TAKE_BIT(addr->s6_addr32[2], 31, 11, 6) |
-		TAKE_BIT(addr->s6_addr32[2], 15, 11, 7) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[2]), 31, 11, 6) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[2]), 15, 11, 7) |
 
 		/* Take 4 bits from lower values */
-		TAKE_BIT(addr->s6_addr32[3], 31, 11, 8) |
-		TAKE_BIT(addr->s6_addr32[3], 15, 11, 9) |
-		TAKE_BIT(addr->s6_addr32[3], 7, 11, 10) |
-		TAKE_BIT(addr->s6_addr32[3], 0, 11, 11);
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[3]), 31, 11, 8) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[3]), 15, 11, 9) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[3]), 7, 11, 10) |
+		TAKE_BIT(UNALIGNED_GET(&addr->s6_addr32[3]), 0, 11, 11);
 }
 
 static inline uint16_t ipv4_to_hash(struct in_addr *addr)
diff --git a/subsys/net/ip/net_if.c b/subsys/net/ip/net_if.c
index 6aa4082dd42..744a8fe2af5 100644
--- a/subsys/net/ip/net_if.c
+++ b/subsys/net/ip/net_if.c
@@ -1414,7 +1414,7 @@ struct net_if_addr *net_if_ipv4_addr_lookup(const struct in_addr *addr,
 				continue;
 			}
 
-			if (addr->s4_addr32[0] ==
+			if (UNALIGNED_GET(&addr->s4_addr32[0]) ==
 			    iface->ipv4.unicast[i].address.in_addr.s_addr[0]) {
 
 				if (ret) {
diff --git a/subsys/net/ip/rpl.h b/subsys/net/ip/rpl.h
index 8e32a03b3c1..06b9c126603 100644
--- a/subsys/net/ip/rpl.h
+++ b/subsys/net/ip/rpl.h
@@ -639,10 +639,10 @@ struct net_rpl_route_entry {
  */
 static inline bool net_rpl_is_ipv6_addr_mcast(const struct in6_addr *addr)
 {
-	return addr->s6_addr32[0] == htonl(0xff020000) &&
-		addr->s6_addr32[1] == 0x00000000 &&
-		addr->s6_addr32[2] == 0x00000000 &&
-		addr->s6_addr32[3] == htonl(0x0000001a);
+	return UNALIGNED_GET(&addr->s6_addr32[0]) == htonl(0xff020000) &&
+		UNALIGNED_GET(&addr->s6_addr32[1]) == 0x00000000 &&
+		UNALIGNED_GET(&addr->s6_addr32[2]) == 0x00000000 &&
+		UNALIGNED_GET(&addr->s6_addr32[3]) == htonl(0x0000001a);
 }
 
 /**
@@ -657,12 +657,12 @@ struct in6_addr *net_rpl_create_mcast_address(struct in6_addr *addr)
 {
 	addr->s6_addr[0]   = 0xFF;
 	addr->s6_addr[1]   = 0x02;
-	addr->s6_addr16[1] = 0;
-	addr->s6_addr16[2] = 0;
-	addr->s6_addr16[3] = 0;
-	addr->s6_addr16[4] = 0;
-	addr->s6_addr16[5] = 0;
-	addr->s6_addr16[6] = 0;
+	UNALIGNED_PUT(0, &addr->s6_addr16[1]);
+	UNALIGNED_PUT(0, &addr->s6_addr16[2]);
+	UNALIGNED_PUT(0, &addr->s6_addr16[3]);
+	UNALIGNED_PUT(0, &addr->s6_addr16[4]);
+	UNALIGNED_PUT(0, &addr->s6_addr16[5]);
+	UNALIGNED_PUT(0, &addr->s6_addr16[6]);
 	addr->s6_addr[14]  = 0;
 	addr->s6_addr[15]  = 0x1a;
 
diff --git a/subsys/net/ip/utils.c b/subsys/net/ip/utils.c
index 600a1d3ba59..e06f08384d3 100644
--- a/subsys/net/ip/utils.c
+++ b/subsys/net/ip/utils.c
@@ -306,8 +306,8 @@ int net_addr_pton(sa_family_t family, const char *src,
 
 			if (*src != ':') {
 				/* Normal IPv6 16-bit piece */
-				addr->s6_addr16[i] = htons(strtol(src, NULL,
-								  16));
+				UNALIGNED_PUT(htons(strtol(src, NULL, 16)),
+					      &addr->s6_addr16[i]);
 				src = strchr(src, ':');
 				if (!src && i < expected_groups - 1) {
 					return -EINVAL;
@@ -320,7 +320,7 @@ int net_addr_pton(sa_family_t family, const char *src,
 			/* Two colons in a row */
 
 			for (; i < expected_groups; i++) {
-				addr->s6_addr16[i] = 0;
+				UNALIGNED_PUT(0, &addr->s6_addr16[i]);
 			}
 
 			tmp = strrchr(src, ':');