I would recommend you use ARSSE, as it is vastly superiour to any of the other admin clients.
This thread has information, download links, etc.
This thread, however, should be moved to Fan Apps as it is a question about a 3rd party application, and not Soldat.
As for your original question, we need more information to be able to help you properly. From what I can gather from this thread, ESA is an admin client, and you want to know how to find out your IP address, correct? Be aware that the IP address it wants is the servers IP address, and you only use your own if you are hosting on your own computer. The
Soldat Wiki entry for IP has more information on finding this information; if you are on a LAN (ie: you have a router/multiple computers), skip to the end as it will help the most.
