Hello, I think I saw once a method to match in openflow rule on certain bytes in payload in order to apply some action. I can't seem to find it looking at documentation. I would need to match on incoming GTP packet. Meaning there is some UDP packet (port 2152). Inside this packet there is GTP header and after that real ip src/dst address (real traffic of mobile user). I would need to match on this inner ip src (or dst) address. From the standpoint of ip packet, this is payload so I would neeed to match on i.e certain bytes of payload in packet. Is this possible in any way ? thanks
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