[U-Boot-Users] PingSend
richard at uclinux.net
richard at uclinux.net
Sat Jun 4 21:29:02 CEST 2005
Strange...
Changing from:
int PingSend(void)
{
static uchar mac[6];
volatile IP_t *ip;
volatile ushort *s;
uchar *pkt;
to:
int PingSend(void)
{
static uchar mac[6];
IP_t *ip;
ushort *s;
uchar *pkt;
Solved the ping problem (o;
nice evening
rick
> Evening (o;
>
>
> Something puzzed me today...(and still is ;o)
>
>
> In "net/net.c" in function PingSend we fill out
> the ping packet to be sent later on after ARP reply,
> which is pointed to by "NetArpWaitTxPacket"..right?
>
> When I place a call to print out the packet just before
> starting with ARP like:
>
> /* and do the ARP request */
> NetArpWaitTry = 1;
> NetArpWaitTimerStart = get_timer(0);
> printf ("Ping packet filled...\n");
> print_packet (NetArpWaitTxPacket, NetArpWaitTxPacketSize);
> ArpRequest();
> return 1; /* waiting */
>
>
> I get as a result (as also captured with ethereal):
>
> Ping packet filled...
> Packet of length 42
> 0000 0000 0000 0280 ad20 31b8 0800 0000
> 0000 0000 0000 0000 0000 0a00 0404 0a00
> 0105 0000 0000 0000 0000
>
> So only source MAC and PROT_IP as well as source/dest
> IP addresses are filled out correctly..rest is blank...
>
>
> thanx in advance for hints (o;
> rick
>
>
>
>
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