STEP 2) Create an I2P tunnel from device to server
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- Run the router.

- Instructions for 'I2P for Android' app:
. - Select 'TUNNELS'
. - While in 'Client tunnels' subsection tap the plus (+) button,
. - Select Client tunnel > Standard client
. - Jump down in these instructions to "Instructions for both".

- Instructions for 'i2prouter'
. - Go to the Hidden Service Manager (http://127.0.0.1:7657/i2ptunnelmgr) and scroll to "New client tunnel", ensuring 'Standard' (default) is the 'type', and hit 'Create'.

- Instructions for both (loosely ordered):
. - Set 'Name' / 'Description' to anything. 'XMPP' is fine.
. - Tick 'Automatically start tunnel when router starts' (or 'Auto-start' in app) if you don't want to remember to enable the connection.
. - Set 'Port' (or 'Binding port' in the app) to '5222' (default for XMPP)
. - Ensure 'Reachable by' is '127.0.0.1' (default)
. - Set Tunnel Destination to that which was sent (eg. long key ending with ...f2eswa6pq.b32.i2p). The app will helpfully warn you if the address/key is completely invalid.
. - i2prouter only: It will likely help anonymity to enable "Share tunnels with other clients" (in the app this is enabled automatically).
. - Select 'CREATE TUNNEL' (or 'Save' in i2prouter) when done.
. - The tunnel should now appear in the 'Client tunnels' list.

Congrats! You have a tunnel to the server!!! Now to send IMs into the tunnel 😛