Scenario:

When EXTOL Secure customer is trying to receive inbound AS2 data from Lowes for the first time, Lowes is AS2 solution is reporting: HTTP 400 host refused an attempted connect operation error.

Lowes AS2 set-up is the following:
AS2 ID: lowesprodedi1@lowes.com
URL: http://168.244.164.33:2080/ipnet/as2
Format Type: S/MIME Signed/Encrypted
Encryption Algorithm: DES3 168
Signing Algorithm: SHA-1 - 160
Receipt Capability: Sync and Async
Signing Capability: Signed and Unsigned

Note - In addition to the SEND-TO IP Address above, be sure to also add Lowe's SEND-FROM IP address - 168.244.164.230 and port 2080 - to any Firewall rules that you may have.

Error Message:

Lowes (trading partner) received the error message below.
Error Message: java.net.ConnectException: A remote host refused an attempted connect operation.
Summary: Sending of document [997ABCCustomer.edi] to [http://xxx.xxx.xxx.xxx:4080] FAILED
Related Settings: Originator:AS2 Send - Originating Party (lowesprodedi1@lowes.com)
Recipient: AS2 Send - Recipient Party

Issue:

Inbound traffic is not being allowed past the firewall to the EXTOL Secure Server

Resolution:

EXTOL Customer needs to inform their firewall/network people to allow inbound traffic from IP address: 168.244.164.230