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by bewo001
842 days ago
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From my VoIP experience, there is no 'typical' in NAT. There have been attempts to classify NATs (https://www.rfc-editor.org/rfc/rfc3489, Section 5), but they have been abandoned after seeing how NATs sometimes change their behaviour dependent on their load, the number of connections, the phase of the moon etc (https://www.rfc-editor.org/rfc/rfc4787, Section 3). So, yes, application-level keepalives are your best bet. |
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