When using a fritzbox with attached phones in bridge mode behind another router, manufacturer avm suggests to enable the option Keep port forwarding of the Internet router enabled for telephony
, instead of adding static port forwarding in the NAT.
I wanted to see whether my router supports this, and what timeout to choose (the fritzbox has a sub-option Keep port forwarding enabled every [0.5-5] minutes
.
So, I would need to find out
what is the underlying technology on that option? Googling just led me to
reverse port forwarding
, but from what I read this is completely unrelated and just refers to reverse ssh tunnels.how can I configure the timeout in question in my Mikrotik Router (RouterOS 6.33)?