Hi,

    I am using evc++ 4.0 with K-Jam for changing metric value of the
adapter which i am

loading dynamically and assign IP. The code i am using is as follows:

{
BOOL bRet = FALSE;
PMIB_IPFORWARDTABLE    pBuffer  = NULL;
DWORD dwSize = 0;
UINT k = 0;
DWORD dwAdapIndx = 0;
DWORD dwError = 0;

do
{
    if (GetAdapterIndex(VPN_VIRTUAL_ADAPTER,&dwAdapIndx) != NO_ERROR)
    {
        break;
    }

    dwError = GetIpForwardTable(NULL,&dwSize,TRUE);

    if (ERROR_INSUFFICIENT_BUFFER == dwError || ERROR_BUFFER_OVERFLOW ==
dwError)
    {
        pBuffer = (PMIB_IPFORWARDTABLE)malloc(dwSize);
            if (pBuffer)
            {
                if(NO_ERROR == GetIpForwardTable(pBuffer,&dwSize,0))
                {
                    for (k = 0; k < pBuffer->dwNumEntries; k++)
                    {
                        if ( pBuffer->table[k].dwForwardIfIndex ==

dwAdapIndx )
                        {
                            if ( pBuffer->table[k].dwForwardMetric1

                            {

pBuffer->table[k].dwForwardMetric1 = pBuffer-

                            }

                            if( NO_ERROR == SetIpForwardEntry(

&(pBuffer->table[k]) ) )
                            {
                                bRet = TRUE;
/*Success condition*/
                            }
                            else
                            {
/*Failing condition*/
                            }
                        }
                        else
                        {
                            msgloop_CB_printf(NULL, "Entry is not

found");
                        }
                    }
                }
            }

        }
    } while(FALSE);

    if (pBuffer)
    {
        free(pBuffer);
        pBuffer = NULL;
    }

    return bRet;
}

    I tested all the possible error paths, everything works fine. Using
above code i am able

to change the metric value of the default route (0.0.0.0) for  newely
created adapter. But for

rest of the route entries for newly created adapter, SetIpForwardEntry
API returning error 87

(Invalid parameters). I have also tested this applcation in standalone
mode but the result is

the same. Is there any constrain that only default route metric value
can be changed

programmatically, not other routes? Any suggession on the behavior of
PPC routing table.

Regards
Rajat