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I want to be able to route GTP-U traffic that arrives to my linux through two different interfaces. However, I want to route it using information inside the tunnel: inner ip addresses. My machine is not generating the GTP-U traffic, just a point in between.

Is it possible to route GTP traffic in Linux using route, iptables or a similar approach?

All I could find on this topic is and old GitHub repo that it is obsolet for Ubuntu 22 and higher.

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  • what do you mean with "it's obsolete"? So, something else is doing its job? Commented Mar 31 at 10:12
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    I mean new Ubuntu's iptables are compiled with nf_tables and do not use old xtables modules Commented Mar 31 at 12:14

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