Hello!
Look at
pginfos[i].hh[12] = 0x08; /* fill in protocol. Rest is filled in later. */
pginfos[i].hh[13] = 0x00;
--ro
Junfeng Yang writes:
> Hi,
>
> I tried to use pktgen module from 2.6.* kernels and found out that I
> couldn't receive any packets generated by pktgen. I did not even see a
> "packet dropped by kernel" message. It turned out that function
> setup_inject in net/core/pktgen.c doesn't setup the ethernet header field
> correctly. Below is a patch that fixes the problem.
>
> --- kernel-source-2.6.8-orig/net/core/pktgen.c 2004-08-13
> 22:37:26.000000000 -0700
> +++ kernel-source-2.6.8/net/core/pktgen.c 2005-01-19 17:54:46.000000000
> -0800
> @@ -259,6 +259,9 @@
>
> /* Set up Dest MAC */
> memcpy(&(info->hh[0]), info->dst_mac, 6);
> +
> + /* Set up protocol */
> + ((struct ethhdr *)(info->hh))->h_proto = htons(ETH_P_IP);
>
> info->saddr_min = 0;
> info->saddr_max = 0;
>
> -Junfeng
>
> -
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