PYScanVLAN is a Python3 program designed for scanning VLANs on a network port by checking all or specified VLAN tags. It is designed to be run on a Linux system that supports the iproute2 commands like ip

1. Configure the options in the config.ini file.
2. Run the program using the command python3 PYScanLAN.py.
3. The program will scan the specified VLANs and output the results to a JSON.

This section provides explanations for the various configuration options available in the script. Set in the config.ini file

• Description: Set this variable to the desired network interface.
• Example: INTERFACE = 'eth1'

• Description: Specifies the wait time (in seconds) for DHCP lease acquisition.
• Example: DHCP_WAIT_TIME = 15

• Description: When set to True, the script calculates the total possible hosts in each network based on the subnet mask.
• Example: CALCULATE_POSSIBLE_HOSTS = True

• Description: When set to True, the script adds the regular subnet mask (e.g., "255.255.255.0") from the CIDR notation (e.g., "/24").
• Example: CALCULATE_SUBNET_MASK = True

• Description: Specifies the range of VLAN IDs to check.
• Example:

  VLAN_CHECK_RANGE_START = 1
  VLAN_CHECK_RANGE_END = 4096

• Description: Path to the DHCP client lease file. The script uses this file to obtain DHCP configuration details.
• Example: LEASE_FILE_PATH = '/var/lib/dhcp/dhclient.leases'

Ensure that this path points to the correct location of the DHCP client lease file on your system. The script relies on the information stored in this file for DHCP-related operations.

• Python 3.x
• Linux operating system (Preferably Debian; it was developed on Debian)
• iproute2 on linux

{
    "detected_networks": [
        {
            "vlan_id": "default",
            "ip_address": "100.110.152.81",
            "domain": "he.orld.fl.wtsky.net"
        },
        {
            "vlan_id": 6,
            "rx_bytes": 38725,
            "ip_address": "10.110.6.109",
            "cidr_subnet_mask": 24,
            "possible_host_count": 254,
            "subnet_mask": "255.255.255.0",
            "domain": "orld.fl.wtsky.net"
        },
        {
            "vlan_id": 10,
            "rx_bytes": 901,
            "ip_address": "10.110.10.245",
            "cidr_subnet_mask": 24,
            "possible_host_count": 254,
            "subnet_mask": "255.255.255.0"
        }
    ]
}