What do you mean by APN logo? What do you mean, Cmwap?

APN (access point name), which identifies the type of business for GPRS, is currently divided into two broad categories: Cmwap (WAP access via GPRS), CMNET (services other than WAP are currently CMNET, such as connecting to the Internet, etc.).

Channel access point settings, many people will have questions, because they are not quite clear about the difference between Cmwap and cmnet

I'll tell you:

Many people know that this is the two different access points provided by China Mobile,
But when it comes to the difference, I'm afraid many players are not very clear. In fact, Cmwap and CMNET are just China Mobile people
Two GPRS access modes for partitioning. The former is for mobile phone WAP Internet, the latter is mainly for the PC, notes
This computer, PDA, etc. use GPRS Internet service. They don't make any difference in how they are implemented, but because they're positioned differently
, so compared with cmnet, Cmwap has some restrictions, there are also differences in tariffs.

WAP is only a GPRS application mode, it is independent of GRPs access mode. WAP application of the implementation side
Type is the "Terminal +wap Gateway +wap Server" mode, different from the general Internet "terminal + server"
Mode of operation. The main purpose is to achieve the Wap-web protocol conversion through WAP gateway to save network traffic and
Compatible with the purpose of existing Web applications. WAP Gateway from a technical point of view, is just a host to provide proxy services, it
Not necessarily provided by network operators. But as far as I know, China Mobile GPRS network currently has only one WAP gateway
: 10.0.0.172, which is provided by China Mobile for WAP browsing (HTTP) services. One thing to note, WAP network
In general, the LAN gateway is different, the standard WAP gateway only realizes the function of HTTP proxy,
Did not complete the router, NAT and other LAN gateway functions. This determines the limitations of its application.

In order to distinguish the two from the application, China Mobile has restricted cmwap, mainly in CMW
AP Access can only access the IP in the GPRS network (10. *), and cannot access the Internet through routing. We
Using Cmwap to browse Web pages on the Internet is achieved through the WAP Gateway protocol or the HTTP Proxy service it provides.
That is, the need to pass China Mobile GPRS network only a WAP gateway: 10.0.0.172. Cmnet has a complete
Internet access, here is not much to say, mainly let us look at Cmwap. Because of the limitations mentioned above,
, the scope of application of Cmwap depends on the support provided by WAP Gateway. At present, China Mobile WAP gateway only to mention
For HTTP proxy protocol (80 and 8080 ports) and WAP Gateway Protocol (9201 Port).

As a result, only applications that meet the following two conditions can work correctly in China's mobile Cmwap access mode:
1. The application's network request is based on the HTTP protocol. 2. Applications support HTTP proxy protocol or WAP gateway protocol.
And cmnet is not subject to any restrictions.

To speak plainly is to say that through the cmwap way of access, need to walk China Mobile Gateway through the HTTP protocol to connect,
The consequence is that the speed will be slow, I believe many friends have used the agency clothing
The device, yes, is that feeling, and through the cmnet to connect, is directly connected to the infinite universe in inter
NET, the speed will be faster than the Cmwap. Say the speed, it's time to say the price, if the player does not
Using the package, then Cmwap and Cmnet are the same, 1kb three cents, or ordered a xx yuan package of XM package
, beyond part 1k a penny, this time, the same price is the same, as far as I understand, cmwap version of the flow will be larger
, so it is better to use cmnet, fast and save money. But for mobile users in many places, the situation
May be a little different, quite a few areas of the dynamic zone can only access Cmwap, can not access cmnet, so did not choose
selected, and some places have a dynamic zone on the monthly network card, there are 10 yuan, 20 yuan, 50 yuan and so on, specific to
Look at the local tariff policy, and these monthly cards usually only pack cmwap traffic, this time if the use of cmnet Also
Additional pay, so suggest these users or use Cmwap bar. Finally, if the player's mobile card can only
Visit Cmwap or have Cmwap monthly package, then you use Cmwap connection to play, otherwise use Cmnet company
Then it's a better choice.


So, in a word, there is a WAP monthly subscription to the use of WAP monthly Internet, no monthly business on the use of cmnet, anyway, is according to the flow of money, why not choose a bit faster it (but still want to remind everyone, according to the cost of flowmeter is huge, to
A lot of attention)
References: http://hi.baidu.com/wkxyz/blog/item/5174bf384b7575c2d56225e4.html