Thank you for submitting your idea! This is definitely something that we have on our roadmap. We plan on implementing NAT traversal for Storage nodes so that SNOs do not have to set up port forwarding manually. We talk about it in section 4.5 Peer-to-peer communication of the V3 white paper. We are planning to work on while the network is in Beta before we officially go into production with SLA's. Please check back in a few months to get an update on this functionality and keep submitting your ideas so that I can make then a part of our roadmap.
then it will be not needed fix ip at all?
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