Parameter Exchange with Partner

The communication with AS2 requires several parameters that have to be exchanged between the communication partners. Following a list of these parameters (you have to send one list to your partner and your partner has to send one to you).

Parameter

Description

Optional/Mandatory

AS2 Identifier

The ID you use for your AS2 partner on your system (like a user name/login for your partner). It is recommended to use your company name plus a prefix, e.g. AS2_EXAMPLECOMPANY.

M

AS2 Address URL

This is the URL of your AS2 service. The standard URL of the Lobster_data AS2 service is http://<URL/IP of Integration Server>/partner/AS2Retrieve/ (as configured in ./etc/as2.xml).

M

Connection IP Address

The IP address of your AS2 service (has to be unblocked on your firewall).

M

Connection Port

The port of your AS2 service (has to be unblocked on your firewall).

M

Outgoing IP

The IP from which you send AS2 messages (has to be unblocked on your partner's(!) firewall). Note: You have to use the IP of your DMZ if you are using one.

M

Certificate

You might choose to provide a URL for your partner to download certificates, but you can also exchange them otherwise. The use of certificates is optional.

O

Encryption Algorithm

Encryption algorithm for the messages.

O

Signing Algorithm

Encryption algorithm for the signatures.

O

Content Type

Some partners require a certain content type (is set in the Response Route of Lobster_data). Lobster_data itself does not need a content type.

O

MDN Delivery Mode

MDNs can be sent synchronously or asynchronously. If the synchronous mode is chosen, the MDN is expected as an immediate response to the AS2 message (same URL). In asynchronous mode, the MDN is sent to a separately specified URL (at some point in time).

Please note: Both sides have to use the same mode.

O

MDN URL Async Mode

The URL to which an MDN shall be sent if the asynchronous mode is used, e.g. http://as2.example.com/as.

O

Please communicate with your partner and exchange the necessary parameters before you try to establish a connection.