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ZTE ZXDSL 831AII modem / router firmware upgrade

Warning: All Local PPPOE Settings changes to default value after upgrading, You have to reconfigure your broadband "username" and "password" and other pppoe settings after upgrade.

Here is the link for ZTE ZXDSL 831 AII firmware upgrade provided by BSNL :

http://www.box.net/shared/q0coyxd3uv

I did not noticed any major change in functioning of modem / router, only some graphical interface and viewing changes. Some menu and configuration settings changed now & can be easily accessed. After upgrade you will find all settings and configurations by typing http://192.168.1.1 hence http://192.168.1.1/home1.html dose not required any more as earlier.

I even tried it on Nokia Siemens Networks's C2110. Firmware of Nokia Siemens C2110 now changed and it is showing ZXDSL 831AII as modem. Though firmware worked on C2110 and my modem is working fine, it is not advisable to do upgrade on nokia siemens C2110 at all.

How To Port Forward in ZTE ZXDSL 831 AII / NOKIA SIEMENS C2110

For Port forwarding, Two steps are required

1. Configure OS to connect with modem LAN connection with a single IP address, say 192.168.1.2.
2. Configure Modem/router for forward port of certain application, say Utorrent (Torrent client).

1. Configure OS to connect with modem/ROUTER LAN connection with single fix ip address (192.168.1.2 in this case).
This is required for port forwarding, if single fix ip address is not assigned to OS / Lan Card, Router's DHCP will assign any ip address to computer from a range of IP addresses (range of 192.168.1.2 - 192.168.1.21, DHCP may assign IP address 192.168.1.2, or 192.168.1.5 or 192.168.1.14) and every time DHCP server of ROUTER assigns different IP address, we have to change configuration settings of our ROUTER for this dynamically assigned IP address.
So we need a single Fix IP address to configure for LAN connection between System and Router

For Windows XP
A. Go to "network connection" in control pannel, right click "local area network"
B. Click "properties".



C. From list select "internet protocol (tcp/ip)",
D. Click "properties".
E. in general tab click "use the following ip address" and enter as follows
ip: 192.168.1.2
subnet mask: 255.255.255.0
gateway: 192.168.1.1
F dsn server: 192.168.1.1
G. CLICK OK

For Windows 7 Settings :

1. Click on Start button -> Then click on Control Panel -> Then click on "Network and Sharing Center"

2. On next window of Network and Sharing Center, Click on "Change adapter settings"

3. On next window, select "Local Area Connection", Right Click on It and click on "Properties"

Then we can find TCP/IP Protocol v4 and there we can set our static fix LAN IP address / Subnet Mask / Gateway / DNS Server

2. Configure Modem/ROUTER for port forwarding.
1. Now open web browser and type address in address bar
http://192.168.1.1/home1.html

2. And log in using username: admin / password: admin then click "OK"

3. click "configurration" in left side,

4. Click on "Advanced Security" Settings

5. On next Screen Click on 'Port Forwarding"

6. Click on "Add"

7. On next screen in Application Name, Pre-defined: can be selected to forward standard port of a program from like GNUtella / KazAa / FTP clients / many Games etc

Just select Application Type -> Select Application -> Enter Internal Host IP Address in "Forward to Internal Host IP Address:" (IP address configured in OS to connect MODEM / ROUTER, In this CASE 192.168.1.2 )

Then press "Apply"

8. If any other application's port is to be forwarded, First Select "User defined:"

9. Select "WAN Interface:" (This is PPPOE connection of our ISP BSNL connection is IpPppoe_0_35 and for MTNL Delhi connection IpPppoe_0_32 is to be selected.

10. In "Forward to Internal Host IP Address:" enter static single fix IP address of Computer we already configured. In this case it is 192.168.1.2

11. In "By Using the rule" select protocol (TCP or UDP or both protocol can be selected) then enter the ports numbers that we want to be forward, in our case the port number 34001 is forwarded for application Utorrent. We can forward a complete range of ports also (as 34001 to 34009)

Press "Apply"

And done, our Application Utorrent's port no 34001 is forwarded for both TCP and UDP protocol

ZTE ZXDSL 831AII configuraton in Bridge / Dialup Mode

For Bridge mode configuration,
Three steps are required,
1. Configure OS to connect with modem LAN connection.
2. Configure Modem for Bridge mode.
3. Configure OS and make dialer for bridge mode.

So ...

Point no. 1. Configure OS to connect with modem LAN connection.

A. Go to "network connection" in control pannel, right click "local area network"
B. Click "properties".



C. From list select "internet protocol (tcp/ip)",
D. Click "properties".
E. in general tab click "use the following ip address" and enter as follows
ip: 192.168.1.2
subnet mask: 255.255.255.0
gateway: 192.168.1.1
F dsn server: 192.168.1.1
G. CLICK OK






Point no. 2. Configure Modem for Bridge mode.

A.
Now open web browser and type address in address bar
http://192.168.1.1 and log in using
1. usernaem: admin / password: admin
2. click ok
3. click "configure" in left side,



and now on internet connection configuration page click "ADD" if you already do not have bridge_0_35 setting in modem,
B.
1. click "internet"
2. click add


If there is already bridge_0_35 entry available directly go to
Point no.3. Configure OS and make dialer for bridge mode.

C.
after clicking ADD/EDIT in "configure atm pvc" page select these
1. VPI 0
2. VCI 35
3. SERVICE CATAGORY UBR WITHOUT PCR
4. NEXT


D.
in next page configuration connection type:
1. select "Bridging" and Encapsulation Type: "llc/snap"
2. click NEXT


E.
in configur WAN IP Settings page, Click "Next"

F. On Summary page, Press "Apply"

G. Now you can see new bridge_0_35 entry.

restart modem.

Point no 3. Configure OS and make dialer for bridge mode.

A.

For Dialer configuration, Go to Start --> Control Panel --> Network Connection, Click Create a new connection

B.
On New Connection Wizard, Press "Next"


C..
On next screen, Network Connection Type, Select, Connect to the Internet, then press "Next"

D.
On next screen select "Set up my connection manually" then press "Next"

E.
On next screen, select "Connect using a broadband connection that require a user name and password", then press "Next"



F.
On next screen, enter ISP name, it could be anything, Say BSNL. Then press "Next"

G.
On next screen, enter user name and password provided by BSNL / ISPs then press Next.

H.
On final screen press "Finish" and you are ready to connect.



Press Connect :