Packet Editing

modulename: act_pedit.ko

configname: CONFIG_NET_ACT_PEDIT

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>QoS and/or fair queueing
└─>Packet Editing
In linux kernel since version 2.6.12  
Say Y here if you want to mangle the content of packets.

To compile this code as a module, choose M here: the
module will be called act_pedit.

source code: