Givw me more detail instructions on how to configure and setup each and everything included :
To create a secure network in Packet Tracer with the provided system characteristics and LAN configurations, the following approach can be taken for each LAN:

LAN 1 - Cellular Configuration:
1. Configure the Gateway router (Model 2811) with NAT settings to handle the conversion of IPv4 private addressing to IPv4 public addressing for external connectivity.
2. Set up a public IP subnet (e.g., 172.0.10.x) to assign each smartphone with an IPv4 public IP address.
3. Install a Central Office Server with DHCP capabilities to assign private internal IP addresses to the LAN devices. It can also support static IP addresses if required.
4. Implement appropriate security measures such as firewall rules, access control lists, and intrusion detection systems at the Gateway router to protect the cellular LAN from external threats.

LAN 2 - Wireless Configuration:
1. Connect each device (e.g., laptops, smartphones) to their respective Access Points using a wireless network.
2. Install a switch and configure NAT settings between the Access Points and the Gateway router to convert IPv4 private addressing to IPv4 public addressing for Internet access.
3. Use DHCP for internal network addressing, ensuring devices receive unique private IP addresses.
4. Implement WiFi security measures such as WPA2 encryption, strong passphrases, and MAC address filtering to safeguard wireless communication from unauthorized access.

LAN 3 - Wired with Wireless Router Configuration:
1. Connect the three computers, three VoIP phones, and the server to a switch for wired connectivity.
2. Use a Wireless Router to provide wireless connectivity to two smartphones and three laptops within the LAN.
3. Configure the Wireless Router with appropriate security settings, including enabling WPA2 encryption, setting strong passwords, and configuring MAC address filtering.
4. Implement DHCP servers for both the wired and wireless LANs to assign private IP addresses to the devices.
5. Connect the LAN to the Gateway router using a switch and configure NAT settings to ensure external connectivity while maintaining security.

Ensuring network security:
1. Deploy firewalls at each gateway router to filter and control incoming and outgoing network traffic.
2. Configure access control lists at the routers to restrict access to certain IP addresses or services.
3. Employ secure authentication mechanisms (e.g., WPA2-Enterprise with RADIUS) for WiFi networks to prevent unauthorized access.
4. Regularly update router firmware and apply security patches to mitigate vulnerabilities.
5. Implement intrusion detection and prevention systems to monitor network traffic and detect potential threats.
6. Employ encryption protocols (e.g., SSL/TLS) for secure transmission of data over the network.
7. Train network users about best security practices, including strong passwords, regular backups, and awareness of phishing attempts.

By incorporating these security measures, each LAN in the network system can be emulated securely in Packet Tracer, protecting the network infrastructure and data from potential threats and unauthorized access.