diff --git a/src/Makefile b/src/Makefile
index 0608549..e701a23 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -8,7 +8,7 @@ PROG-denano = $(addprefix $(BUILD_DIR)/, hello.elf dhry.elf queens.elf stanford.
 PROG-sim = $(addprefix $(BUILD_DIR)/, hello.elf test_exception_sim.elf test_emac_sim.elf)
 
 PROG-ml402 = $(addprefix $(BUILD_DIR)/, test_emac.elf)
-SRCS-network = $(addprefix common/network/, arp.c dhcp.c emac.c ethernet.c icmp.c ipv4.c marvell_88e1111.c mii-bitbang.c udp.c fifo.c)
+SRCS-network = $(addprefix common/network/, packet.c arp.c dhcp.c emac.c ethernet.c icmp.c ipv4.c marvell_88e1111.c mii-bitbang.c udp.c fifo.c)
 all: $(PROG-$(BOARD))
 
 $(BUILD_DIR):
diff --git a/src/common/network/arp.c b/src/common/network/arp.c
index 3b0013b..37a935e 100644
--- a/src/common/network/arp.c
+++ b/src/common/network/arp.c
@@ -23,7 +23,7 @@ void ArpRequest(packet_t *pPacket, uint8_t *eth_addr_src, uint8_t *inet_addr_src
 {
 	ARP *pARP;
 
-	pARP = (ARP*)Eth_pkt_buffer_get(pPacket);
+	pARP = (ARP*)packet_buffer_get(pPacket);
 
 	memset(pARP, 0, sizeof(ARP));
 
@@ -40,7 +40,7 @@ void ArpRequest(packet_t *pPacket, uint8_t *eth_addr_src, uint8_t *inet_addr_src
 	pARP->proto_size = 4;
 
 	// Send it
-	Eth_pkt_append(pPacket, sizeof(ARP));
+	packet_append(pPacket, sizeof(ARP));
 
 }
 
@@ -48,7 +48,7 @@ void ArpReply(packet_t *pPacket, uint8_t *eth_addr_src, uint8_t *inet_addr_src,
 {
 	ARP *pARP;
 
-	pARP = (ARP*)Eth_pkt_buffer_get(pPacket);
+	pARP = (ARP*)packet_buffer_get(pPacket);
 
 	memset(pARP, 0, sizeof(ARP));
 
@@ -65,7 +65,7 @@ void ArpReply(packet_t *pPacket, uint8_t *eth_addr_src, uint8_t *inet_addr_src,
 	pARP->proto_size = 4;
 
 	// Send it
-	Eth_pkt_append(pPacket, sizeof(ARP));
+	packet_append(pPacket, sizeof(ARP));
 
 }
 
diff --git a/src/common/network/ethernet.c b/src/common/network/ethernet.c
index 1226315..cc32001 100644
--- a/src/common/network/ethernet.c
+++ b/src/common/network/ethernet.c
@@ -59,19 +59,6 @@ uint8_t *Eth_pkt_create(packet_t *pPacket, uint16_t proto, uint8_t *pHwAddr_src,
 	return pPacket->pData;
 }
 
-uint8_t *Eth_pkt_append(packet_t *pPacket, uint32_t size)
-{
-	pPacket->size += size;
-	pPacket->pData += size;
-
-	return pPacket->pData;
-}
-
-uint8_t *Eth_pkt_buffer_get(packet_t *pPacket)
-{
-	return pPacket->pData;
-}
-
 uint32_t Eth_pkt_send(packet_t *pPacket)
 {
 	volatile uint32_t *pEmac_ctrl = (uint32_t*)SYS_EMAC_TX_CTRL;
diff --git a/src/common/network/ethernet.h b/src/common/network/ethernet.h
index 7f1a550..8808ec6 100644
--- a/src/common/network/ethernet.h
+++ b/src/common/network/ethernet.h
@@ -16,6 +16,7 @@
 #include <sys/types.h>
 
 #include <libsys/gpio.h>
+#include "packet.h"
 
 #define	ETH_PACKET_MIN_SIZE		64
 #define	ETH_PACKET_MAX_SIZE		1500
@@ -52,20 +53,9 @@ typedef struct _seth_hdr_t
 
 } __attribute__ ((__packed__)) eth_hdr_t;
 
-typedef struct _spacket_t
-{
-	uint8_t pkt_buf[1516];
-	uint16_t size;
-	uint8_t *pData;
-
-} packet_t;
-
 // -------------------------------------------------------------------------
 void EthInit(void);
 uint8_t *Eth_pkt_create(packet_t *pPacket, uint16_t proto, uint8_t *pHwAddr_src, uint8_t *pHwAddr_dst);
-uint8_t *Eth_pkt_append(packet_t *pPacket, uint32_t size);
-uint8_t *Eth_pkt_buffer_get(packet_t *pPacket);
-
 uint32_t Eth_pkt_send(packet_t *pPacket);
 uint32_t Eth_pkt_recv(uint8_t *pData);
 
diff --git a/src/common/network/icmp.c b/src/common/network/icmp.c
index 51922cd..fb39bcb 100644
--- a/src/common/network/icmp.c
+++ b/src/common/network/icmp.c
@@ -33,10 +33,10 @@ void ICMPSendRequest(packet_t *pPacket, uint8_t *inet_addr_src, uint8_t *inet_ad
 	sum = IPv4ChkSum(icmp_payload, sum, len);
 	pICMP->hdr_chksum = ~sum;
 
-	pData = (uint8_t*)Eth_pkt_append(pPacket, sizeof(ICMP));
+	pData = (uint8_t*)packet_append(pPacket, sizeof(ICMP));
 
 	memcpy(pData, icmp_payload, len);
-	Eth_pkt_append(pPacket, len);
+	packet_append(pPacket, len);
 
 }
 
@@ -57,10 +57,10 @@ void ICMPSendReply(packet_t *pPacket, uint8_t *inet_addr_src, uint8_t *inet_addr
 
 	pICMP->hdr_chksum = ~sum;
 
-	pData = (uint8_t*)Eth_pkt_append(pPacket, sizeof(ICMP));
+	pData = (uint8_t*)packet_append(pPacket, sizeof(ICMP));
 	memcpy(pData, icmp_payload, len);
 
-	Eth_pkt_append(pPacket, len);
+	packet_append(pPacket, len);
 
 }
 
diff --git a/src/common/network/ipv4.c b/src/common/network/ipv4.c
index 5c9a014..efb198c 100644
--- a/src/common/network/ipv4.c
+++ b/src/common/network/ipv4.c
@@ -17,7 +17,7 @@ uint8_t *IPV4_create(packet_t *pPacket, uint16_t proto, uint16_t len, uint8_t *i
 {
 	IPV4 *pIPv4_hdr;
 
-	pIPv4_hdr = (IPV4*)Eth_pkt_buffer_get(pPacket);
+	pIPv4_hdr = (IPV4*)packet_buffer_get(pPacket);
 
 	memset(pIPv4_hdr, 0, sizeof(IPV4));
 
@@ -36,7 +36,7 @@ uint8_t *IPV4_create(packet_t *pPacket, uint16_t proto, uint16_t len, uint8_t *i
 	pIPv4_hdr->hdr_chksum = ~IPv4ChkSum((uint16_t*)pIPv4_hdr, 0, sizeof(IPV4));
 
 	// Send it
-	return Eth_pkt_append(pPacket, sizeof(IPV4));
+	return packet_append(pPacket, sizeof(IPV4));
 
 }
 
diff --git a/src/common/network/packet.c b/src/common/network/packet.c
new file mode 100644
index 0000000..be14219
--- /dev/null
+++ b/src/common/network/packet.c
@@ -0,0 +1,21 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/cFiles/file.c to edit this template
+ */
+
+#include "packet.h"
+
+uint8_t *packet_append(packet_t *pPacket, uint32_t size)
+{
+	pPacket->size += size;
+	pPacket->pData += size;
+
+	return pPacket->pData;
+}
+
+uint8_t *packet_buffer_get(packet_t *pPacket)
+{
+	return pPacket->pData;
+}
+
+
diff --git a/src/common/network/packet.h b/src/common/network/packet.h
new file mode 100644
index 0000000..f3db949
--- /dev/null
+++ b/src/common/network/packet.h
@@ -0,0 +1,38 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/cFiles/file.h to edit this template
+ */
+
+/* 
+ * File:   packet.h
+ * Author: jens
+ *
+ * Created on 22. Dezember 2021, 11:17
+ */
+
+#ifndef PACKET_H
+#define PACKET_H
+
+#include <stdint.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct _spacket_t
+{
+	uint8_t pkt_buf[1516];
+	uint16_t size;
+	uint8_t *pData;
+
+} packet_t;
+
+uint8_t *packet_append(packet_t *pPacket, uint32_t size);
+uint8_t *packet_buffer_get(packet_t *pPacket);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PACKET_H */
+
diff --git a/src/common/network/udp.c b/src/common/network/udp.c
index 2c955af..5c401d1 100644
--- a/src/common/network/udp.c
+++ b/src/common/network/udp.c
@@ -40,13 +40,13 @@ uint8_t *UDP_create(packet_t *pPacket, uint8_t *inet_addr_src, uint16_t port_src
 	pUDP->chksum = ~IPv4ChkSum((uint16_t*)pUDP_payload, chksum, len);
 
 	// Commit header
-	pData = (uint8_t*)Eth_pkt_append(pPacket, sizeof(UDP));
+	pData = (uint8_t*)packet_append(pPacket, sizeof(UDP));
 
 	// Commit data
 	if (pUDP_payload)
 	{
 		memcpy(pData, pUDP_payload, len);
-		return Eth_pkt_append(pPacket, len);
+		return packet_append(pPacket, len);
 	}
 
 	return pData;
@@ -59,6 +59,6 @@ void UDP_append(packet_t *pPacket, void const *pData, uint16_t len)
 	if (pData)
 	{
 		memcpy(pPacket->pData, pData, len);
-		Eth_pkt_append(pPacket, len);
+		packet_append(pPacket, len);
 	}
 }