Is there any easy & fast way to add TCP options to the SKB packet like Window scaling factor or Time stamp with C on netfilter. Or if any body has example it would be perfect to see.
Thank you
Is there any easy & fast way to add TCP options to the SKB packet like Window scaling factor or Time stamp with C on netfilter. Or if any body has example it would be perfect to see.
Thank you
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One of the fastest way is by using
sysctl
and following are various options, but as you are interested in window size and timestamp are below:The command to control them is:
Otherwise you can control it programatically like the way timestamp is controlled either in software or hardware in this guide.