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Hi all. I need help with FCS re-computing. I added an extra header in outgoing packets, between layer 2 and 3 for my own needs. Now when the packet is ...
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- 11-26-2009 #1
- Join Date
- Oct 2009
Frame check sequence re-calculation
How can I recompute FCS after adding the extra header? I thought I could disable hardware checksumming setting skb->ip_summed = CHECKSUM_NONE and then call skb_checksum on socket buffer, but it seems not to be working.
Thanks in advance