Once you have entered a Server Name, you need to modify the Server Address to complete the interfaces file entry.
See SQL Anywhere Server - Database Administration > Replication > Using SQL Anywhere as an Open Server > Configuring Sybase Open Server > Adding or changing the server address.
The port number you enter must match the port specified on the Sybase IQ database server command line. The default port number for the Sybase IQ server is 2638.
The following are valid server address entries:
elora,2638 123.85.234.029,2638