Restoring community connectivity requires every detail to be meticulously addressed. Even in such rare cases, there may exist edge instances where the script would fail to function properly, requiring a reboot of my machine. If some of a higher resolution were available, please let us know.
1. Export working community settings
Reboot the machine and establish a connection to the hotspot; thereafter, ensure the correct community configuration persists through the execution of the following Python script. Will you be able to easily modify and tailor this content to suit your specific needs? WIFI_DEVICE_NAME To retain and subsequently restore iPhone USB tethering community settings.
import subprocess
import re
import json
WIFI_DEVICE_NAME = "Wi-Fi"
def get_network_info():
hardware_ports = subprocess.check_output(
["networksetup", "-listallhardwareports"],
textual content=True
)
wifi_match = re.search(
f"{Hardware} Port: {WIFI_DEVICE_NAME}nDevice: (w+)",
hardware_ports
)
if not wifi_match:
elevate Exception("No Wi-Fi interface discovered")
interface = wifi_match.group(1)
ifconfig_output = subprocess.check_output(
f"ifconfig {interface}",
shell=True
).decode().splitlines()
ipv4_address = None
ipv6_addresses = []
for line in ifconfig_output:
if "inet " in line:
ipv4_address = line.break up()[1]
elif "inet6 " in line:
ipv6_addresses.append(line.break up()[1].break up("%")[0])
netstat_output = subprocess.check_output(
f"netstat -nr | grep default | grep {interface}",
shell=True
).decode().splitlines()
ipv4_router = ipv6_router = None
for line in netstat_output:
elements = line.break up()
if len(elements) > 1:
if ":" not in elements[1]:
ipv4_router = elements[1]
else:
ipv6_router = elements[1].break up("%")[0]
config = {
"network_service_name": WIFI_DEVICE_NAME,
"network_interface_id": interface,
"ipv4_address": ipv4_address or "Unknown",
"ipv4_subnet_mask": "255.255.255.0",
"ipv4_router": ipv4_router or "Unknown",
"ipv6_primary_address": ipv6_addresses[0] if ipv6_addresses else "Unknown",
"ipv6_temporary_address": ipv6_addresses[1] if ipv6_addresses[1:] else "Unknown",
"ipv6_clat46_address": ipv6_addresses[2] if ipv6_addresses[2:] else "Unknown",
"ipv6_prefix_length": "64",
"ipv6_router": ipv6_router or "Unknown",
}
config_filename = f"network_settings_{interface}.json"
with open(config_filename, "w") as f:
json.dump(config, f, indent=2)
print(f"Saved config for {WIFI_DEVICE_NAME} ({interface}) to {config_filename}")
if __name__ == "__main__":
get_network_info()
The Python script will produce a JSON file containing functional IPv4 and IPv6 configurations within the same directory.
2. Restore community settings from the config file? Then re-enable auto/DHCP routing.
Create one other Python script. Operating your Mac? As a result of altering most community settings on the device, you cannot complete this process without sudo privileges.
import subprocess
import json
import time
def run_cmd(cmd, ignore_errors=False):
try:
subprocess.run(cmd, check=True)
print(f"Success: {' '.join(cmd)}")
return True
except subprocess.CalledProcessError as e:
if not ignore_errors:
print(f"Failed: {' '.join(cmd)}: {e}")
return False
def test_network(config_file):
with open(config_file) as f:
config = json.load(f)
print("Setting up IP configuration...")
# Configure IPv4 settings
run_cmd(['sudo', 'networksetup', '-setmanual', config['network_service_name'], config['ipv4_address'], config['ipv4_subnet_mask'], config['ipv4_router']])
# Replace IPv4 routing
run_cmd(['sudo', 'route', 'delete', 'default'])
run_cmd(['sudo', 'route', 'add', 'default', config['ipv4_router']])
# Configure IPv6 settings
run_cmd(['sudo', 'networksetup', '-setv6manual', config['network_service_name'], config['ipv6_primary_address'], config['ipv6_prefix_length'], config['ipv6_router']])
# Add further IPv6 addresses
run_cmd(['sudo', 'ifconfig', config['network_interface_id'], 'inet6', 'add', config['ipv6_temporary_address'], 'prefixlen', config['ipv6_prefix_length']])
run_cmd(['sudo', 'ifconfig', config['network_interface_id'], 'inet6', 'add', config['ipv6_clat46_address'], 'prefixlen', config['ipv6_prefix_length']])
# Replace IPv6 routing
run_cmd(['sudo', 'route', '-inet6', 'delete', 'default'], ignore_errors=True)
run_cmd(['sudo', 'route', '-inet6', 'add', 'default', f"{config['ipv6_router']}%{config['network_interface_id']}"])
print("Wait for 1 second before resetting to auto/DHCP configuration... ")
time.sleep(1)
print("Resetting to automatic configuration...")
# Remove all configured IP addresses
output = subprocess.check_output(f"ifconfig {config['network_interface_id']}", shell=True).decode().splitlines()
for line in output:
if "inet " in line:
run_cmd(['sudo', 'ifconfig', config['network_interface_id'], 'inet', line.split()[1], 'remove'])
elif "inet6 " in line:
run_cmd(['sudo', 'ifconfig', config['network_interface_id'], 'inet6', 'del', line.split()[1]])
# Reset to automatic configuration
run_cmd(['sudo', 'networksetup', '-setdhcp', config['network_service_name']])
run_cmd(['sudo', 'networksetup', '-setv6automatic', config['network_service_name']])
if __name__ == "__main__":
import sys
test_network(sys.argv[1])
When tethering ceases to function, initiate the script and feed in the configuration file produced, thereby troubleshooting the issue.
python3 load_working_network_settings.py network_settings_en0.json
Voila! Your website should hopefully be restored now.
