All IPs which are connecting to Middle Realy, except the IPs in the consensus file are Bridge IPs?
Are there any other IPs possible?
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Sign up to join this communityThe Tor network does not make any distinction about "middle" relays, so I'm assuming you mean a relay without the Guard or Exit flags.
In most cases incoming connections will be from guard or bridge relays, but not always. A Tor client is allowed to build circuits through any relays it wants in any order, so a Tor client may connect directly to a "middle" relay. Directory authorities may also connect directly to the relay in order to check if it's up. If the relay is acting as a directory cache, people may also download directory documents from the relay's DirPort. I'm not sure if there are others.