Submitting Customer IP with Authorize.Net AIM

I am using the latest version of ZenCart 1.3.8a. I just added a new verification service through Authorize Net after I experienced credit card slamming. The filter that checks for too many transactions from the same IP address states:

IMPORTANT: If you submit Advanced Integration Method (AIM) transactions, in order to use this filter you must submit the customer IP address (x_customer_ip) with each transaction.

I've looked through the documentation but cannot find whether ZenCart passes this variable on during the submission. Can someone tell whether or not this variable is being sent to Authorize.Net AIM?

Thanks

DLLong:

IMPORTANT: If you submit Advanced Integration Method (AIM) transactions, in order to use this filter you must submit the customer IP address (x_customer_ip) with each transaction.

... Can someone tell whether or not this variable is being sent to Authorize.Net AIM?
Yes it is.

Thanks, I appreciate the quick response. :clap: