Hi,
Deduplication works the same in both bridge and tunnel mode:
The datastore is like a large dictionary. The English language dictionary has about 170k words, but the Wanos byte dictionary will have many millions or many hundreds of millions of words.
When data is sent across the WAN, Wanos will look for these words in the packets and replace the byte-word in the packet with the location in the dictionary, e.g. Page 100 Line 40. The short code might look something like 100,40. The receiver then looks in the dictionary on this location and finds the data and replace the dictionary location code with the original byte-word data. Once it is complete, the packet payload is a 100% match of the original.