My IPFS node announces port 4269, beside the regular 4001

My IPFS node announces access thru port 4269 in addition to regular 4001. I don’t see any reference to 4269 anywhere online or in my “.ipfs/config”. What is that port used for? It is currently closed in my firewall, shouId open it? Why are two different ports announced?

Thanks.

That’s probably because your DisableNatPortMap is false and your router has UPnP enabled, so it opens a port for you and announces it.

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No, my router doesn’t use UPnP and, in fact, that port is not reachable from Internet.

Hmmm, that’s the only thing I can think of. Not sure why it would do that then…