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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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Under the Same WLAN Fat AP Configuration, Why Cannot iOS Phones Find Wi-Fi Signals but Android Phones Can?

Under the Same WLAN Fat AP Configuration, Why Cannot iOS Phones Find Wi-Fi Signals but Android Phones Can?

Procedure

An iOS does not display Wi-Fi signals if the iOS does not receive DNS parameters configured on the DHCP server. Typically, an AR is configured as a DHCP server. After DNS information is configured on the AR, iOS phones can find Wi-Fi signals and connect to the Wi-Fi network.

More Information

When serving as a DHCP server, an AR allows the manual or automatic configuration of the DNS server IP addresses and DNS domain name suffix in the address pool. In automatic mode, the DHCP server must also serve as a DHCP client (by enabling the DHCP client function on the interface connected to a remote DHCP server). After obtaining the DNS server IP addresses and DNS domain name suffix from the remote DHCP server, the device allocates these configurations to downlink clients using the import function of the address pool. For example, a DHCP server of an enterprise needs to obtain the unified DNS server IP address and DNS domain name suffix from the carrier, and allocate these configurations to downlink clients. In this case, the automatic mode is recommended.
  • Manually specify the DNS server IP address and DNS domain name suffix in the address pool.
    • Interface-based configuration:
      <Huawei> system-view
      [Huawei] dhcp enable
      [Huawei] interface gigabitethernet 1/0/0
      [Huawei-GigabitEthernet1/0/0] ip address 10.1.1.1 24
      [Huawei-GigabitEthernet1/0/0] dhcp select interface
      [Huawei-GigabitEthernet1/0/0] dhcp server dns-list 10.10.1.254
      [Huawei-GigabitEthernet1/0/0] dhcp server domain-name example.com
    • Global configuration:
      <Huawei> system-view
      [Huawei] ip pool global1
      [Huawei-ip-pool-global1] dns-list 10.10.1.254
      [Huawei-ip-pool-global1] domain-name example.com
  • Configure the system to automatically obtain the DNS server IP address and DNS domain name suffix in the address pool.
    • Interface-based configuration:
      <Huawei> system-view
      [Huawei] dhcp enable
      [Huawei] interface gigabitethernet 1/0/0
      [Huawei-GigabitEthernet1/0/0] dhcp select interface
      [Huawei-GigabitEthernet1/0/0] dhcp server import all
    • Global configuration:
      <Huawei> system-view
      [Huawei] ip pool global1
      [Huawei-ip-pool-global1] import all
      
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Updated: 2019-05-10

Document ID: EDOC1000079719

Views: 447903

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