Wr841n V7 fl ddwrt to change bricks to fix 802.1x and PPTP Server

Recently played a routing, is the TP-LINK wr841n hardware version V7

The routing is dual-antenna Mbps, And the chip is atheros ar7241, 4 m flash memory, 32 M memory. Note that the official ddwrt firmware of wr841n is not available. Although the wr841nd and reset buttons can be refreshed, the routing control interface cannot be connected once the configuration is incorrect, it is very troublesome to fix the TTL line.

After I brushed the ddwrt wr841nd, I was lazy and used the 703n firmware directly. Then I changed the bricks. Of course, this is my own job.

Then I bought the USB to TTL line and split the two pins. The remaining three txd rxd Gnd are connected to the RX TX Gnd of the router respectively. The three TTL contacts of the route can be inserted directly without welding. Then the driver is installed in the virtual XP, And the Super Terminal is used to communicate with the router. Although there are still garbled characters (it is said that garbled characters can be removed through a short resistor), you can still perform the operations, see some tips vaguely, and be able to perform blind operations.

Setenv ipaddr 192.168.1.1 and then setenv serverip 192.168.1.2. Then, change the IP address of your Nic to 192.168.1.2 to tftpboot. I will not go into details about this. It is available on the Internet. Refresh the firmware to ddwrt. Schools use 802.1x to access the Internet. Therefore, wpa_supplicant and wpa_cli must be added.

Since the firmware is close to 4 m, you can no longer add it to the firmware. You can delete multiple languages in the firmware and repackage wpa_supplicant and wpa_cli to the firmware. (sometimes the system prompts missing libraries, then you need to package the corresponding libraries together ). Specific operations: My friend clicks 703n on him.ArticleAnd I will post a link. Http://sfjblog.7yue7.net /? P = 239

If you want to enable PPTP servers on the shared network in your school, this is already supported in ddwrt. Note that the server IP address must not overlap with the router IP address during configuration; otherwise, problems may occur, at the same time, do not enable QoS on the LAN port, otherwise there will be conflicts. Generally, if the IP address of the router is 192.168.1.1, then the IP address of the server is 192.168.2.1, And the IP address of the client is 192.168.2.2-100. In the basic setup of ddwrt, you must enter the gateway address, otherwise, the PPTP client cannot access the gateway. Note that the DMZ host cannot be enabled. Otherwise, the PPTP packets will be sent to the DMZ host without being consumed by the router. To enable PPTP at the same time, add port 1723 of PPTP in port forwarding and forward it to vro1.1 IP 192.168.1.1.

The most important thing is that, even though the PPTP server is enabled, the process still does not exist in PS. You need to manually enable it. You can telnet to the vrotelnet and enter startservice pptpd. When disabled, enter stopservice pptpd. This may be a ddwrt bug?