Wireless Router: the router startup process should be this: router after power will first be POST. Power On Self Test (POST king of Intelligent city wall, the hardware detection process). After the POST is completed, first read the ROM in the preliminary BootStrap program guide. After the initial boot is complete, try to locate and read the full IOS image file. Here, the router will first look for the file in FLASH IOS, IOS file if found, then reads the IOS files, boot the router. If you do not find the IOS file in FLASH, then the router will enter BOOT mode of Intelligent Cities parameters BOOT mode can be used in IOS file on the TFTP. Or using TFTP / X-MODEM to transfer to the router in a FLASH IOS file (usually we process called irrigation IOS). After the transfer is complete reboot the router to join the smart city of Hefei, the router can start the CLI mode. When the router IOS file initialization is complete, it will start looking STARTUP-CONFIG file in NVRAM, STARTUP-CONFIG called the startup configuration file. This file stores all configuration and modifications we made to the router. When the router to find this file, the router will load the file in all configurations, and according to the configuration to learn, build, maintain routing tables, and load all the configuration to RAM (the router's memory) in, enter the user mode and finally complete the boot process. If no STARTUP-CONFIG file in NVRAM, the router will enter the inquiry configuration mode, also known as Q configuration mode, all configuration on the router can be configured in the form of questions and answers in this mode. However, under normal circumstances, we basically do not have such a model. V-Link wireless router: the so-called Wi-Fi, is covered with a wireless router function, which is mainly used for Internet access and wireless coverage. Popular wireless routers on the market generally support Dedicated xdsl / cable, dynamic xdsl, pptp four access, it also has some other network management functions, such as dhcp service, nat firewall, mac address filtering and more. Wireless Router (Wireless Router) is like the simple wireless AP and the broadband router into one of the extended product, it not only has all the features such as simple wireless AP supports DHCP client, support for VPN, firewall, support WEP encryption and so on, and also includes network address translation (NAT) functionality to support LAN users to share network connections. It can achieve a home wireless network Internet connection sharing, ADSL and residential broadband wireless sharing access. 3G routers use can be divided into industrial 3G router, commercial 3G router; divide up from LAN speed wifi, 3G router is divided into 54M, 150M, 300M and so on. Router hardware including RAM / DRAM, NVRAM, FLASH, ROM, CPU, motherboard and power supply as well as various ports. Hardware failure generally can be seen from the LED indicator. For example: There is a green PWR (or POWER) status indicators on the power module. When this LED is lit, the power supply is working properly. Router password There are two places to set. From the previous description we can know that there are two basic access modes to access the router: user mode and management mode. For safety reasons, when entering these two modes are required to set a password. Although we all know that the password is the administrator's authority with the largest smart key Hefei city, but still some people will forget it. Someone even set a password too simple to malicious hackers to enter and modify the password. In fact, if we are careful that these low-level errors are avoided. Hefei intelligent urban characteristics, Anhui Technology (certification), Hefei, Anhui Hefei smart city is provided by Technology Development Co., Ltd. Hefei Anhui Technology Development Co., Ltd. (www.vshinetek.com/)(www.vshinetek.com) is Hefei, network communications products leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In Anhui Technology leadership with the staff warmly welcome all inquiries negotiations to create Anhui Technology better future.