[Winpcap-users] WinPCAP packets capture delay..

[Alimjan Kuramshin]

Hi, Devid! Maaany thanks for Your reply. NO, it's just an example MAC's, actually i'm using hardware MAC's. And one more thing, my PC (laptop) connected directly to the other PC (or custom device, it doesn't mater i guess).. 
Many thanks for Your attention, i've spend about 6-8 month with this problem, and still no luck :(

19.09.2010, в 15:25, Fish (David B. Trout) написал(а):

> FYI: be careful with the MAC address you choose.
>  
> Any MAC address with the 0x01 bit on in the first byte is considered an all-stations broadcast.
>  
> Is that what you actually intended to do?  Send 10,000 packets to ALL/every network adapter on your local network??  (if your host has more than one network adapter on the same physical network segment then they’ll both receive every packet.)
>  
> If you need a MAC address to test with, the IANNA has reserved the range 00-00-5E-00-00-00 through 00-00-5E-FF-FF-FF just for that purpose.
>  
> See the section “IANA ETHERNET ADDRESS BLOCK - UNICAST USE” (about 0.75 of the way down the web page) in the following document:
>  
>  http://www.iana.org/assignments/ethernet-numbers
> -- 
>   "Fish"  (David B. Trout) 
>     fish at softdevlabs.com
>  
> From: winpcap-users-bounces at winpcap.org [mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Alimjan Kuramshin
> Sent: Saturday, September 18, 2010 2:33 PM
> To: winpcap-users at winpcap.org
> Subject: [Winpcap-users] WinPCAP packets capture delay..
> Importance: High
>  
> Hello!
>  
> Gianluca, can u run this code on Your machine and running the Wireshark save the log and send it to me, please..
> Is there any delays, i mean delays between the packets that Wireshark (winpcap) capture?
>  
> P.S. code from WinPcap documentation, sending packets, not one, but 10000 (or 1000000)..
>  
> #include <stdlib.h>
> #include <stdio.h>
>  
> #include <pcap.h>
>  
>  
> void main(int argc, char **argv)
> {
> pcap_t *fp;
> char errbuf[PCAP_ERRBUF_SIZE];
> u_char packet[100];
> int i;
> volatile int n_pkts = 10000; // 1000000
>  
>     /* Check the validity of the command line */
>     if (argc != 2)
>     {
>         printf("usage: %s interface (e.g. 'rpcap://eth0')", argv[0]);
>         return;
>     }
>     
>     /* Open the output device */
>     if ( (fp= pcap_open(argv[1],            // name of the device
>                         65536,                // portion of the packet to capture (only the first 100 bytes)
>                         PCAP_OPENFLAG_PROMISCUOUS,  // promiscuous mode
>                         1000,               // read timeout
>                         NULL,               // authentication on the remote machine
>                         errbuf              // error buffer
>                         ) ) == NULL)
>     {
>         fprintf(stderr,"\nUnable to open the adapter. %s is not supported by WinPcap\n", argv[1]);
>         return;
>     }
>  
>     /* Supposing to be on ethernet, set mac destination to 1:1:1:1:1:1 */
>     packet[0]=1;
>     packet[1]=1;
>     packet[2]=1;
>     packet[3]=1;
>     packet[4]=1;
>     packet[5]=1;
>     
>     /* set mac source to 2:2:2:2:2:2 */
>     packet[6]=2;
>     packet[7]=2;
>     packet[8]=2;
>     packet[9]=2;
>     packet[10]=2;
>     packet[11]=2;
>     
>     /* Fill the rest of the packet */
>     for(i=12;i<100;i++)
>     {
>         packet[i]=(u_char)i;
>     }
>  
>     while (n_pkts--)
>     /* Send down the packet */
>     if (pcap_sendpacket(fp, packet, 100 /* size */) != 0)
>     {
>         fprintf(stderr,"\nError sending the packet: %s\n", pcap_geterr(fp));
>         return;
>     }
>  
>     return;
> }
> /* EOF */
> Thanks, bye..
>  
>  
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