Export (0) Print
Expand All

Adding an Entry to the IP Forward Table

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

This code creates a new route in the IP Forward Table. Note the route must be a viable one or IP will not take it.

PMIB_IPFORWARDROW pRow = NULL;
   ULONG dwSize = 0;
   DWORD dwStatus = 0;

   // Allocate some memory to store the row in
   pRow = (PMIB_IPFORWARDROW)malloc(sizeof(MIB_IPFORWARDROW));
   if (!pRow) {
      OutputMessage(TEXT("Malloc failed, Out of Memory!\r\n"));
      exit(1);
   }

   pRow->dwForwardDest = 0xAACCBBDD;   // AA.BB.CC.DD   
   pRow->dwForwardNextHop = 0x01CCBBAA; // this is in host order Ip
   //Address AA.BB.CC.01 is 01CCBBAA 
   pRow->dwForwardMask = 0x0000FFFF; // 255.255.0.0

   pRow->dwForwardIfIndex = 2;
   pRow->dwForwardType = MIB_IPROUTE_TYPE_DIRECT; // A local route
   pRow->dwForwardProto = MIB_IPPROTO_RIP; // This is defined in 
   //iprtrmib.h
   pRow->dwForwardAge = 0; // Just created it
   pRow->dwForwardMetric1 = 1; 


   // Create a new route entry for the default gateway.
   dwStatus = CreateIpForwardEntry(pRow);

   if (dwStatus == NO_ERROR)
      OutputMessage(TEXT("Route Added Successfully\n"));
   else if (dwStatus == ERROR_INVALID_PARAMETER)
      OutputMessage(TEXT("Invalid Parameter\n"));
   else 
      DisplayErrorMessage(dwStatus);

   // Free resources
   if (pRow)
      free(pRow);

Community Additions

ADD
Show:
© 2014 Microsoft