User's Manual

UTT Technologies Chapter 7 Advanced Setup

http://www.uttglobal.com Page 126

for them from different ISPs, for example, one is TEL Internet connection, and another is

CNC Internet connection. In some cases, if packets accessing one ISP¶s servers are

forwarded through another ISP¶s connection, the access rate may be very slow, or the

access even be forbidden. To ensure that the LAN hosts access the servers normally, the

traffic destined for one ISP¶s servers should be forwarded through this ISP¶s connection,

but not another ISP¶s connection. You can easily achieve this by using static route PDBs.

The system provides three predefined route PDBs whose names are TEL, CNC and

ChinaMobile. The TEL PDB is used to access the TEL servers (i.e., the servers provided

by China Network Communications Corporation), the CNC PDB is used to access the

CNC servers (i.e., the servers provided by China Network Communications Corporation),

and the ChinaMobile PDB is used to access the China Mobile servers (i.e., the servers

provided by

China Mobile Communications Corporation). The TEL PDB encapsulates many

TEL subnets information (IP addresses and subnet masks), the CNC PDB encapsulates

many CNC subnets information, and the ChinaMobile PDB encapsulates many China

Mobile subnets information. By introducing route PDB, the XVHUVGRQ¶t need add static

routes one by one, but instead create a large batch of static routes at a time. Then the

traffic destined for TEL servers will be forwarded through the TEL connection, the traffic

destined for CNC servers will be forwarded through the CNC Internet connection, and the

traffic destined for China Mobile servers will be forwarded through the China Mobile

connection.

UTT Technologies Co., Ltd. will successively provide more route PDBs according to

actual user requirements. You may go to the

Restriction > Policy Database

page to view

the route PDBs status information in the

Policy Database List

, such as version,

reference status, and so on.

In addition, as the IP addresses of ISP servers often change, the UTT¶s technical

engineers will acquire the related information and provide the latest route PDBs

aperiodically as required. In order to facilitate using PDBs, we provide PDB online update

function. That is, you only need go to the Restriction > Policy Database page, and click

the Update hyperlink of a route PDB entry in the Policy Database List. Then the Device

will download the latest PDB from designated web site and apply it automatically.