My configuracion del DAD y ACL es:
-- DAD--
BEGIN
dbms_epg.create_dad(
dad_name => 'ROAMING_DAD'
, path => '/TrueFi/*');

dbms_epg.authorize_dad(
dad_name => 'ROAMING_DAD'
, user => 'ANONYMOUS');

dbms_epg.set_dad_attribute(
dad_name => 'ROAMING_DAD'
, attr_name => 'database-username'
, attr_value => 'ANONYMOUS');
END;

--ACL--
begin
dbms_network_acl_admin.create_acl (
acl => 'utlpkg.xml',
description => 'Normal Access',
principal => 'CONNECT',
is_grant => TRUE,
privilege => 'connect',
start_date => null,
end_date => null
);
end;
/
begin
dbms_network_acl_admin.add_privilege ( 
acl => 'utlpkg.xml',
principal => 'ANONYMOUS',
is_grant => TRUE, 
privilege => 'connect', 
start_date => null, 
end_date => null); 
dbms_network_acl_admin.assign_acl (
acl => 'utlpkg.xml',
host => '127.0.0.1',
lower_port => 7000,
upper_port => 9200);
end;
/
EXECUTE dbms_xdb.SETHTTPPORT(8080);
grant execute on replica_corporate.webtest to public;
grant execute on replica_corporate.webtest to anonymous;
grant execute on utl_http to anonymous;
grant execute on dbms_lock to anonymous;
ALTER USER anonymous ACCOUNT UNLOCK;