diff --git a/coppino-main.ino b/coppino-main.ino
index f058b40..e7c43e3 100644
--- a/coppino-main.ino
+++ b/coppino-main.ino
@@ -6,8 +6,7 @@ void setup() {
   pinMode(13, OUTPUT);
   
   Serial.begin(9600);
-  char addr[16] = { 0x20, 0x01, 0x04, 0x70, 0xc8, 0x44, 0x00, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xca, 0xfe};
-  coppino::address.deserialize(addr);
+  memcpy(&coppino::address, "\x20\x01\x04\x70\xc8\x44\x00\x31\x00\x00\x00\x00\x00\x00\xca\xfe", 16);
 }
 
 void loop() {
@@ -27,7 +26,7 @@ void loop() {
 
   ip_packet.setNextHeader(17); // UDP
 
-  // slip::send(ip_packet.serialize(), 18 + 40);
+  // slip::send(&ip_packet, 18 + 40); // ??
 
   coppino::handler();
 
diff --git a/coppino.ino b/coppino.ino
index 11c2743..b473daa 100644
--- a/coppino.ino
+++ b/coppino.ino
@@ -9,8 +9,7 @@ namespace coppino {
     int r;
     
     while ((r = slip::recv(buffer, LEN)) != -1) {
-      ipv6::IPv6Packet packet;
-      packet.deserialize(buffer, r);
+      ipv6::IPv6Packet packet(buffer, r);
       packet.doAction();
     }
     
diff --git a/ipv6.h b/ipv6.h
index 1369bff..c035a80 100644
--- a/ipv6.h
+++ b/ipv6.h
@@ -16,8 +16,6 @@ namespace ipv6 {
     public:
       IPv6Addr();
       IPv6Addr(const char* address);
-      void deserialize(const char* address);
-      const char* serialize();
   };
 
   extern const IPv6Addr ALL_NODES_ADDRESS;
@@ -35,14 +33,13 @@ namespace ipv6 {
     private:
       char packet[LEN];
     public:
+      IPv6Packet();
+      IPv6Packet(const char* buffer, int len);
       void setSrcAddress(IPv6Addr& address);
       void setDstAddress(IPv6Addr& address);
       void setNextHeader(uint8_t next_header);
       void setFlow(const char* flow);
       void setPayload(char* payload, int len);
-      
-      char* serialize();
-      void deserialize(const char*, int len);
 
       void doAction();
   };
diff --git a/ipv6.ino b/ipv6.ino
index 2762ed0..26537cf 100644
--- a/ipv6.ino
+++ b/ipv6.ino
@@ -48,24 +48,16 @@ uint16_t compute_checksum(const char* src_addr, const char* dst_addr, uint8_t ne
 IPv6Addr::IPv6Addr() {;}
 
 IPv6Addr::IPv6Addr(const char* address) {
-  this->deserialize(address);
-}
-
-void IPv6Addr::deserialize(const char* address) {
   memcpy(this->address, address, 16);
 }
 
-const char* IPv6Addr::serialize() {
-  return this->address;
-}
-
 /******** IPv6Packet ********/
-char* IPv6Packet::serialize() { /* do we actually need these function? everything is already store in a tokenized/serialized form */
-  return packet;
+IPv6Packet::IPv6Packet() {
+  ;
 }
 
-void IPv6Packet::deserialize(const char* buffer, int len) {
-  memcpy(packet, buffer, len);
+IPv6Packet::IPv6Packet(const char* buffer, int len) {
+  memcpy(this->packet, buffer, len);
 }
 
 void IPv6Packet::setNextHeader(uint8_t next_header) {
@@ -127,7 +119,7 @@ void handleICMP(const char* src_addr, const char* dst_addr, const char* flow, ch
       memset(packet + 2, 0, 2); /* zero-checksum */
       uint16_t computed_checksum = compute_checksum(src_addr, dst_addr, NH_ICMP, packet, len);
 
-      //if (memcmp(&computed_checksum, received_checksum, 2) == 0) {  /* if checksum is valid, then... */
+      if (memcmp(&computed_checksum, received_checksum, 2) == 0) {  /* if checksum is valid, then... */
         /*  Build an echo reply:
          *  the reply has the same exact format of the request,
          *  except for Type and Checksum */
@@ -148,7 +140,7 @@ void handleICMP(const char* src_addr, const char* dst_addr, const char* flow, ch
         reply_packet.setDstAddress(tmp_addr);
         reply_packet.setNextHeader(NH_ICMP);
         slip::send((void*)&reply_packet, 40 + len);
-      //}
+      }
   }
   return;
 }