Another interesting question is who *didn't* seem to be aware what was going to happen. Hezbollah was clearly not expecting 7 October or they would have been ready to take advantage right away. The same goes for Houthis and Iran-backed forces in Syria. Every ally outside Gaza was reacting to the events rather than prepared to act in concert with them. So if Iran was aware of the date and the scope of the operation, they don't seem to have shared it with those partners, likely because those partners don't have tunnels with land lines and cannot keep those sorts of secrets from the IDF.
Another interesting question is who *didn't* seem to be aware what was going to happen. Hezbollah was clearly not expecting 7 October or they would have been ready to take advantage right away. The same goes for Houthis and Iran-backed forces in Syria. Every ally outside Gaza was reacting to the events rather than prepared to act in concert with them. So if Iran was aware of the date and the scope of the operation, they don't seem to have shared it with those partners, likely because those partners don't have tunnels with land lines and cannot keep those sorts of secrets from the IDF.