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Paul D.Smith
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Trying to raise the Acrolinx score.
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articles/operator-nexus/troubleshoot-twamp-udp-not-working.md

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@@ -26,7 +26,7 @@ TWAMP (UDP) is configured but doesn't work. Network traffic analysis shows traff
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No mitigation is possible. Two-way UDP protocols can't traverse networks where address translation occurs without extra logic elements such as an ALG (Application-level Gateway).
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Two-Way TCP protocols can traverse a NAT providing that the TCP connection is established from inside the NAT to outside. This is possible because a long-lived connection is established through the NAT and traffic in the return direction flows long this connection. UDP traffic doesn't establish a long-lived connection so there's no defined path back through the NAT for return traffic to follow.
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Two-Way TCP protocols can traverse a NAT providing that the TCP connection is established from inside the NAT to outside. This traversal is possible because a long-lived connection is established through the NAT and traffic in the return direction flows along this connection. UDP traffic doesn't establish a long-lived connection so there's no defined path back through the NAT for return traffic to follow.
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