wlan0设置静态IP无法上网，也无法SSH登录，而未设置时可以

• Potato

  Posts: 13

  Joined: 2024-06-21 1:02

  2024-07-08 13:03

  Code: Select all

  [root@luckfox init.d]$ vi S41staticip
  

  Code: Select all

  #!/bin/sh
  
  MAX_TRIES=10
  TRIES=0
  
  check_ip_address() {
    udhcpc -i wlan0
    if ifconfig wlan0 | grep -q "inet "; then
      return 0
    else
      return 1
    fi
  }
  
  static_ip()
  {
  while [ $TRIES -lt $MAX_TRIES ]; do
    if check_ip_address; then
      echo "DHCP succeed!"
      ifconfig wlan0 192.168.137.21 netmask 255.255.255.0
      route add default gw 192.168.137.1
      echo "nameserver 114.114.114.114" > /etc/resolv.conf
      ifconfig wlan0 up 
      break
    else
      echo "wait DHCP IP..."
      TRIES=$((TRIES + 1))
      sleep 5 
    fi
  done
  
  if [ $TRIES -eq $MAX_TRIES ]; then
    echo "error"
  fi
  }
  
  case $1 in
          start)
                  echo "start"
                  static_ip
                  ;;
          stop)
                  echo "stop"
                  ;;
          *)
                  exit 1
                  ;;
  esac
  

  Code: Select all

  [root@luckfox root]$ ip a
  1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000
      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      inet 127.0.0.1/8 scope host lo
         valid_lft forever preferred_lft forever
  2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq qlen 1000
      link/ether 62:dc:58:a9:cf:1c brd ff:ff:ff:ff:ff:ff
  3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq qlen 1000
      link/ether 90:e4:68:a6:c4:73 brd ff:ff:ff:ff:ff:ff
      inet 192.168.137.21/24 brd 192.168.137.255 scope global wlan0
         valid_lft forever preferred_lft forever
  

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