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Dalam jaringan komputer, Virtual LAN (VLAN), Wide Area Network (WAN), dan Local Area Network (LAN) memiliki peran penting dalam meningkatkan efisiensi dan keamanan jaringan. Jika Anda menggunakan Xiaomi Mi 4A yang menjalankan OpenWRT, memahami pengaturan ketiga aspek ini akan membantu dalam mengoptimalkan konektivitas dan kontrol jaringan.

Artikel ini akan membahas konfigurasi VLAN, WAN, dan LAN pada OpenWRT Xiaomi Mi 4A secara lengkap, mulai dari teori hingga langkah praktis.

Mengenal OpenWRT dan Xiaomi Mi 4A

Apa Itu OpenWRT?

OpenWRT adalah sistem operasi berbasis Linux yang dirancang untuk perangkat jaringan seperti router. Dengan OpenWRT, pengguna mendapatkan kontrol penuh atas konfigurasi dan optimalisasi jaringan.

Spesifikasi Xiaomi Mi 4A

Xiaomi Mi 4A adalah router yang cukup populer dengan dukungan OpenWRT. Spesifikasinya meliputi:

  • CPU: MediaTek MT7628DA
  • RAM: 64MB DDR2
  • ROM: 16MB SPI Flash
  • Port: 2x LAN, 1x WAN
  • Wi-Fi: Dual-band 2.4GHz & 5GHz

Pengertian VLAN, WAN, dan LAN

VLAN (Virtual LAN)

VLAN memungkinkan pengelompokan perangkat secara virtual dalam satu jaringan tanpa harus terhubung secara fisik, membantu mengisolasi lalu lintas dan meningkatkan keamanan.

WAN (Wide Area Network)

WAN digunakan untuk menghubungkan jaringan lokal ke internet atau ke jaringan yang lebih luas.

LAN (Local Area Network)

LAN berfungsi menghubungkan perangkat dalam area terbatas seperti rumah atau kantor untuk komunikasi internal yang cepat.

Persiapan Konfigurasi OpenWRT

Sebelum mulai konfigurasi VLAN, WAN, dan LAN, pastikan langkah-langkah berikut telah dilakukan:

Instalasi OpenWRT

  1. Unduh firmware OpenWRT yang sesuai dengan Xiaomi Mi 4A dari situs resmi.
  2. Flash firmware menggunakan metode TFTP atau Web GUI.
  3. Pastikan router sudah berjalan dengan OpenWRT sebelum lanjut ke konfigurasi.

Konfigurasi VLAN pada OpenWRT

Langkah-langkah konfigurasi VLAN

  1. Masuk ke LuCI Web Interface
    • Buka browser dan akses 192.168.1.1
    • Masukkan kredensial login (default: root, tanpa password)
  2. Masuk ke menu Network > Switch
  3. Tambahkan VLAN baru
    • Setel VLAN ID sesuai kebutuhan, misalnya VLAN 10 untuk guest network.
    • Pilih port yang akan digunakan dan atur Tagged/Untagged.
    • Simpan dan terapkan perubahan.
  4. Cek konfigurasi VLAN dengan perintah:
Bash 
1

swconfig dev switch0 show

Konfigurasi WAN pada OpenWRT

Menghubungkan Router ke Internet

  1. Masuk ke Network > Interfaces.
  2. Edit interface WAN.
  3. Pilih protokol yang sesuai:
    • PPPoE untuk koneksi Fiber/DSL.
    • DHCP Client jika router terhubung ke modem utama.
  4. Masukkan username & password dari ISP (jika menggunakan PPPoE).
  5. Simpan dan terapkan.

Konfigurasi LAN pada OpenWRT

Mengatur IP Address LAN

  1. Masuk ke Network > Interfaces.
  2. Edit interface LAN.
  3. Tetapkan IP statis, misalnya 192.168.10.1.
  4. Pastikan DHCP Server aktif agar perangkat lain mendapatkan IP otomatis.
  5. Simpan dan terapkan.

Meningkatkan Keamanan dan Performa Jaringan

Beberapa langkah tambahan untuk meningkatkan keamanan dan performa:

  • Aktifkan firewall OpenWRT.
  • Gunakan WPA3 untuk keamanan Wi-Fi.
  • Batasi bandwidth dengan QoS atau SQM.
  • Monitor jaringan dengan OpenWRT status page.

Catatan

Dengan konfigurasi VLAN, WAN, dan LAN yang tepat pada OpenWRT Xiaomi Mi 4A, Anda bisa mendapatkan jaringan yang lebih aman, efisien, dan cepat. OpenWRT memberikan fleksibilitas tinggi untuk optimalisasi jaringan sesuai kebutuhan.

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