The cosmos gateway acts as a bridge between your cosmos node and the Marlin relay network, enabling them to understand and talk to each other. In addition, it handles most of the Marlin related interactions for you like optimizing peer sets, attesting messages, generating tickets, etc.
This section assumes that marlinctl is installed already. See here if you have not installed it.
Step 1: Generate a client identity for the gateway by running the below command and entering a passphrase when prompted
sudo marlinctl gateway cosmos keystore create
Step 2: Create the gateway
sudo marlinctl gateway cosmos create --bootstrap-addr "220.127.116.11:8002"
Step 3: Retrieve the cosmos node identity of the gateway by checking keyfile configuration (the alphanumeric NodeID would most likely be different for you).
INFO Keyfile information Key Value NodeId cd276853b1c116f5bf8900b72694fb022800d276
Step 4: Add the gateway as a persistent peer to your cosmos node by adding
firstname.lastname@example.org:21900 ) in file
~/.gaia/config/config.toml and restarting the cosmos node.