IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

ArpHeader
Address Resolution Protocol (ARP) packet header has following form.
typedef struct tag_ArpHeader
{
unsigned int arpHardware;
unsigned int arpProtocol;
unsigned char arpHardwareLength;
unsigned char arpProtocolLength;
unsigned int arpOperation;
unsigned char arpSendPhyAddress[6];
unsigned char arpSendNetAddress[4];
unsigned char arpTargetPhyAddress[6];
unsigned char arpTargetNetAddress[4];
} ArpHeader;
Related Topics
Top of list
Index page
API function ARP_USER_CB - Install ARP callback function
ArpRouteCacheEntry
Comments
typedef struct tagArpRouteCacheEntry
{
unsigned int ifIndex; // Interface index for this entry
unsigned long flags; // Type/state of entry (see below)
unsigned long arpIpAddress; // Device IP address or network address
unsigned long mask; // Ip network mask for cloned ARP entries
long arpTtl; // TimeToLive in milliseconds
long hops; // Number of routers between this host and route
union
{
struct
{
// Device IP address for Local routing entry
unsigned long DevIpAddress;
} LocalNetRouteEntry;
struct
{
// Device Ethernet address for ARP entry
unsigned char MacAddress[6];
unsigned char filler[2];
} ArpEntry;
struct
{
unsigned long GatewayIpAddress; // Indirect route
} GatewayEntry;
} ArpRouteGwayUnion;
} ArpRouteCacheEntry;
flags
This bit field is defined as follows:
Note: Bit 2, 3, and 4 select the view of the ArpRouteGwayUnionunion.
Bit 2: Indirect route (GatewayEntrystructure)
Bit 3: Valid ARP entry (ArpEntrystructure)
Bit 4: Local route (LocalNetRouteEntrystructure)
Page 161 / 400