After preparing the external PingDirectory servers to communicate with the PingDirectoryProxy server, add the two servers in the central location to the proxy server instance.
Because you ran the prepare-external-server tool, the two servers have the cn=Proxy User entry configured.
Run the dsconfig tool.
root@proxy-east-01:./dsconfig
>>>> Specify LDAP connection parameters
Directory Proxy Server host name or IP address [localhost]:
How do you want to connect to the Directory Proxy Server at
localhost?
1) LDAP
2) LDAP with SSL
3) LDAP with StartTLS
Enter choice [1]: 1
Directory Proxy Server at localhost port number [389]:
Administrator user bind DN [cn=Directory Manager]:
Password for user 'cn=Directory Manager':