How to change the bridge connection of Telecom optical modem? Take a picture of the WAN connection table before proceeding. 90% of the time the router cannot be dialed and is stuck at the end of the VLAN and account number.

When helping my friend's Huawei HS8145V5 to change the bridge connection, I made a particularly stupid mistake.: The router was all dialed up, but when I turned around I found that the Internet on the optical modem was still in routing mode, which meant that I was busy all night. This incident forced me to read the WAN connection table of Telecom Optical Mode as a test paper, and then I straightened out the order of changing the bridge connection. It’s not that online tutorials deliberately deceive people, it’s that they always like to start with “change” directly, but no one tells you first.: With this cut, if you delete one wrong item, your TV and landline phone may also disappear.

This article will write down the complete steps for changing the bridge connection of Telecom Tianyi Gateway. I won’t advise you to change it, but I will just explain how to change it. I haven't figured out whether it's worth it yet, let's take a look first Should optical modem change the bridge connection? That article ； Think clearly about what you want to do, and follow the order below.

Let’s make it clear first: Bridging is not about changing the network cable to another port, it is about changing who will dial the number.

Most optical modems leave the factory in routing mode. They store their own broadband account and password, and the public IP address falls on them first. If you connect the router behind it, it means you have two layers of network at home.: The optical modem sends 192.168.2.x to the router, and the router sends 192.168.1.x to the mobile computer. If you want to connect to NAS and cameras from outside, you have to go through two doors, and port forwarding and UPnP are very easy to mess up.

After changing to bridging, the optical modem no longer dials. It basically reverts to an optical-to-electrical conversion box, passing the signal coming from the optical fiber to the router as it is. All tasks such as dialing, sending addresses, and public IP addresses are left to the router. The advantage is that port mapping, DDNS, and game NAT are only managed in one place. The disadvantage is that the router must be able to withstand it, and the WiFi modem itself is basically useless. So think about it before changing it: Your router cannot be an old model with a 100M port, which is worth 100 yuan, otherwise the dial-up performance will not be as good as that of Optical Mode itself.

The day I remodeled my friend's house, I did a comparison. In optical modem routing mode, with AX3000T hanging underneath, the speed often jumps between 880 and 920 Mbit/s. ； After changing the bridging and dialing the router itself, it stabilized at around 940 MB. The difference is not huge, but the delay and port mapping are indeed much faster. Especially if you have a NAS at home that needs to be connected from the outside frequently, this layer of optical modem routing mode is very annoying.

Take a photo of these three pages before you start. Don’t change anything less.

The first page, WAN connection table. Log in with telecomadmin 192.168.2.1 , find the network, WAN or broadband settings. There is usually not one, but several INTERNET, TR069, IPTV, and OTHER. These names look like network ports, but they are actually several virtual business channels. optical modem WAN connects four channels In that article, I checked whether every item could be moved or not. Today, you only need to touch the one with the word INTERNET, and don’t delete all other screenshots.

The second page, broadband account. After changing the bridge, you need to move it to the router to fill it in. Don’t miss any numbers, letters, and the tail after @ in the account number. Most of the time, the password column will be displayed with an asterisk. If you can't see it, dial 10000 to reset it in advance. Don't wait until the bridge is changed to remember it.

The third page, configuration file. Before making changes, export the conf and save it on your computer. This is the only regret medicine. The entrance and download method is here Optical modem configuration file export backup Wrote in. By the way, telecomadmin is required to change the bridge. The useradmin on the sticker cannot be changed at all. Take a look at Super Density. telecomadmin gets that article .

Change the optical modem to bridge in four steps. The menu names are different. Look for INTERNET and Bridge.

The first step is to log in with Super Management 192.168.2.1 . When entering with a normal account, the WAN connection column is either invisible or completely gray. The second step is to enter the network menu and look for entries such as WAN connection and broadband settings. Find the one with INTERNET and the current mode is R or Route. The third step is to change the mode from routing to Bridge, copy the VLAN ID as shown in the screenshot you just took, select LAN1 for the binding port, and save it. The fourth step is to connect the optical modem LAN1 to the WAN port of the router with a network cable.

Among the models I have reviewed, Huawei HS8145V5 is edited in "Network → WAN Connection" ； The menu of ZTE F7015T is more convoluted, it is called "Network → Broadband Settings", and you can only see the connection mode after entering it. ； Some Tianyi Gateway 4.0 calls Bridge "Bridge Mode". You can change your name, but you can’t lose it if you look for three things: INTERNET, Bridge, LAN1.

The last time I overturned it was on VLAN. The neighbor's INTERNET was written as VLAN 45. I quickly changed it to 41. As a result, the router dialed for two minutes and finally said "Server Not Responding". When Hui optical modem took a look, the screenshot was lying on his phone, but he didn't look back. So now I put the screenshots and the background on the same screen, and change a digital core at a glance, which saves me a whole night compared to blindly clicking save.

The most terrible thing here is not that the menu cannot be found, but that the original link has been deleted by swiping. old rules: Only modify the original one, do not create a new one or delete it. If you delete it by mistake, don’t panic. After restarting, the cat may be restored. You really won’t be able to look back at it. Change the bridge back to the article .

Fill in PPPoE on the router. If you make three mistakes and one of the three is wrong, you will not be able to dial it.

After the optical modem modification is completed, the battlefield shifts to the router. Enter the backend of the router, select PPPoE or "Broadband Dial-up" as the Internet access method, fill in the broadband account as it is, and fill in the password you just reset. On my Xiaomi AX3000T, just select PPPoE directly. On the older Mercury Tenda, it is sometimes hidden in "Advanced Settings → Internet Settings".

The first thing that is most likely to be wrong is the tail of the account. In some regions, if the account has a suffix like @xx.gd, if one letter is missing, the authentication will fail. The second is VLAN. Routers generally do not fill in the VLAN, but if you fill it in incorrectly in the optical modem step or do not bind LAN1, the router will keep dialing in circles and report "Server No Response". The third is MAC. In some areas, the computer room will bind the MAC address of the old device to the account number. If the new router cannot dial it, go to the router and find a "MAC address cloner" to copy the WAN port MAC of the old router.

Once completed, save it and don’t rush to test your speed. Sometimes it takes two or three minutes for the router to dial up, and the WAN port status changes from "Connecting" to "Connected", and the public IP no longer starts with 192.168, then it is really connected. I finished modifying my friend's HS8145V5. After waiting for three minutes, there was still no movement. I went to the kitchen to get a glass of water and came back to see. Xiaomi AX3000T has obtained the public IP address. Most of the time, it's not because the call is not dialed, but because the interface refreshes slowly.

If the dial cannot be dialed, don’t reset the optical modem first. Check in this order.

I couldn't dial it in the first night, so my first reaction was to press the reset button on the back of the camera. It was later discovered that the real culprit was that the last digit of VLAN was copied. Once the reset card is played, broadband authentication and LOID will all disappear, making it more difficult to end. The correct order is:

• VLAN first: Open the screenshot of the WAN connection. Each number is a pair. 41, 43, and 45 are different in different regions.
• Then pair the binding port: Is the optical modem bridge connected to LAN1? Is the network cable coming out of LAN1?
• Final account: Plug the computer directly into the optical modem LAN1 and create a new PPPoE broadband connection. If the computer can communicate, it means there is no problem with the optical modem. The problem lies with the router.

After optical modem bridging 192.168.2.1 If you often can't get in, it doesn't mean the cat is broken. Computer manual configuration 192.168.2.10 , mask 255.255.255.0 You can find it back, see the complete route The article about the loss of contact with optical modem backstage after bridging .

After correcting these two accounts, you must first settle them: IPTV and ITMS

As long as you only touch the INTERNET line in the optical modem and leave the IPTV VLAN and binding port untouched, the set-top box can generally still watch. But to be on the safe side, turn on the TV to check after making the changes. Don’t panic if the screen goes black. It’s probably because the set-top box is still pointing to the old gateway. Restart the set-top box or reconnect it. The three methods I tried the night I rescued it are here. IPTV has no signal after bridging inside.

The second account is ITMS. Telecom will push the optical modem configuration back to the standard template in the middle of the night. If you change the bridging mode during the day, it may change back to the routing mode in the early morning. For the first three days, I checked every night to see if the WAN port of the router still had a public IP address. Here’s how to deal with the scam. ITMS pushed back that article Written in full. I really regret that I want to go back, but don’t insist on it. Just follow the article in 1323 and change the Bridge back to Route. It only takes a few minutes.

Finally, I’ll give you a check-in: If you have a NAS, monitor, or play games remotely, change it. ； The old man has his IPTV on all day long and no one can come to rescue him, so don’t touch it yet. ； The router is still an old 100Mbps machine, so I will replace the router first and then think about it. Changing the bridge is not as fast as possible, only when all the parameters are copied can it be faster.