};
static const tMacAddr cMAC_BROADCAST = {{0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}};
+static const tMacAddr cMAC_ZERO = {{0x00,0x00,0x00,0x00,0x00,0x00}};
#define MAC_SET(t,v) memcpy(&(t),&(v),sizeof(tMacAddr))
#define IP4_SET(t,v) (t).L = (v).L;
extern int IPStack_AddFile(tSocketFile *File);
extern int IPStack_GetAddressSize(int AddressType);
-extern int IPStack_CompareAddress(int AddressType, void *Address1, void *Address2, int CheckBits);
-extern const char *IPStack_PrintAddress(int AddressType, void *Address);
+extern int IPStack_CompareAddress(int AddressType, const void *Address1, const void *Address2, int CheckBits);
+extern const char *IPStack_PrintAddress(int AddressType, const void *Address);
extern tRoute *IPStack_FindRoute(int AddressType, tInterface *Interface, void *Address);