The Lazy Networker

Tag: Aruba

  • High Availability status in Aruba Mobility Controller

    To check the High Availability (HA) status in an Aruba Mobility Controller, you can use the CLI (Command Line Interface) or the Web UI. Here’s how you can do it:

    🔧 Using CLI (SSH or Console):

    1. Login to the controller via SSH or console.
    2. Run the following command:

    show ha

    This will display the HA configuration and status including:

    • Role (Active/Standby)
    • HA state (UP/DOWN)
    • Synchronization status
    • Heartbeat info
    • Peer IP and state

    💡 Additional Useful CLI Commands:

    Command Description show ha Shows general HA status show ha group-membership Shows the group membership of controllers in HA setup show switchinfo Shows controller role (master, standby, etc.) show redundancy Displays detailed HA redundancy state show log system 50 Check system logs for HA-related events

    🌐 Using Web UI:

    1. Log in to the Aruba Controller Web UI.
    2. Go to Configuration > Redundancy or Dashboard > System > Redundancy (depending on firmware).
    3. You’ll see the controller role, peer info, and synchronization status.

    📝 Tips:

    • Active controller handles client traffic.
    • Standby controller takes over if the active one fails.
    • Ensure both controllers are synchronized and licenses are shared if using license pooling.

  • SNMP v2c on Aruba (HPE) switch

    Here’s how to configure SNMP v2c on an Aruba (HPE) switch, specifically for the ArubaOS-Switch series (formerly HP ProCurve).

    🔧 SNMP v2c Configuration Steps – ArubaOS-Switch (CLI)

    1. Enable SNMP Service (if not already enabled)

    switch(config)# snmp-server

    2. Set the SNMP Read-Only Community String

    switch(config)# snmp-server community public operator-unrestricted

    • public – replace with your preferred community string.
    • operator-unrestricted – gives read-only access.

    3. Set the SNMP Read-Write Community String (if needed)

    switch(config)# snmp-server community private manager-unrestricted

    • private – change to a secure community name.
    • manager-unrestricted – allows full configuration access.

    4. Define SNMP Trap Receiver (Optional)

    switch(config)# snmp-server host 192.168.1.100 community public

    • Replace 192.168.1.100 with your SNMP monitoring server IP.

    5. Enable SNMP Traps (Optional)

    switch(config)# snmp-server enable traps

    ✅ Example Configuration

    switch(config)# snmp-server switch(config)# snmp-server community monitor operator-unrestricted switch(config)# snmp-server community manage manager-unrestricted switch(config)# snmp-server host 192.168.1.10 community monitor switch(config)# snmp-server enable traps

    🔍 To Verify Configuration

    show snmp-server

  • Aruba Wireless LAN Controller (WLC) Basic Configuration Guide

    The Aruba Wireless LAN Controller (WLC) is used to manage and control Aruba Access Points (APs) for enterprise wireless networks. This guide provides a step-by-step configuration using both CLI and GUI.

    1. Initial Setup of Aruba WLC

    Before configuration, ensure:
    ✔ You have console or SSH access to the controller.
    ✔ The controller is powered on and connected to the network.
    ✔ APs can communicate with the controller.

    Step 1: Access the Controller

    • Console Access: Use a terminal emulator like PuTTY.
    • SSH Access:shellCopyEditssh admin@<Aruba-WLC-IP>
    • Web GUI:
      • Open a browser and go to https://<Aruba-WLC-IP>
      • Login using admin/admin (default credentials).

    2. Basic Controller Configuration Using CLI

    Step 2: Set Up Management Interface

    configure terminal
    interface vlan 1
    ip address 192.168.1.100 255.255.255.0
    exit

    🔹 Assigns IP to the management VLAN.

    Step 3: Set Hostname and Domain

    configure terminal
    hostname Aruba-WLC
    ip domain-name example.com
    exit

    🔹 Defines hostname and domain name.

    Step 4: Configure Time and NTP

    configure terminal
    clock timezone IST 5 30
    ntp server 192.168.1.1
    exit

    🔹 Ensures accurate time sync.

    Step 5: Configure VLAN and DHCP

    configure terminal
    interface vlan 10
    ip address 192.168.10.1 255.255.255.0
    ip helper-address 192.168.10.2  # DHCP Server IP
    exit

    🔹 Creates VLAN 10 and configures DHCP relay.

    3. Configuring SSID and Security

    Step 6: Create a Wireless Network (SSID)

    configure terminal
    wlan ssid-profile MyWiFi
    essid MyWiFi
    opmode wpa2-psk
    exit

    🔹 Creates an SSID named “MyWiFi” with WPA2-PSK.

    Step 7: Assign VLAN to the SSID

    configure terminal
    vlan 10
    exit
    wlan virtual-ap MyWiFi-VAP
    wlan ssid-profile MyWiFi
    vlan 10
    exit

    🔹 Maps WLAN to VLAN 10.

    Step 8: Configure WPA2-PSK Security

    configure terminal
    wlan ssid-profile MyWiFi
    wpa-passphrase MySecurePassword
    exit

    🔹 Enables WPA2-PSK authentication.

    4. Configuring APs to Join the Controller

    Step 9: Enable AP Management

    configure terminal
    ap system-profile default
    ap-name ArubaAP-1
    ip address 192.168.1.10
    exit

    🔹 Allows APs to register with the controller.

    Step 10: Verify APs

    show ap database

    🔹 Displays a list of connected APs.

    5. Enable DHCP for Wireless Clients

    Step 11: Configure DHCP on WLC

    configure terminal
    ip dhcp pool WirelessClients
    network 192.168.10.0 255.255.255.0
    default-router 192.168.10.1
    dns-server 8.8.8.8
    exit

    🔹 Assigns IPs dynamically to wireless clients.

    6. Save and Verify Configuration

    Step 12: Save Configuration

    write memory

    🔹 Saves the configuration permanently.

    Step 13: Verify WLAN and AP Status

    show wlan ssid-profile
    show ap database
    show clients

    🔹 Displays configured SSIDs, connected APs, and wireless clients.

    7. Configuring Aruba WLC Using Web GUI

    Login to Web GUI:

    Open https://<Aruba-WLC-IP> and login with admin credentials.

    Basic Setup Wizard:

    Navigate to Configuration > Wizards > Startup Wizard.

    Create an SSID (WLAN):

    Go to Configuration > Wireless > WLANs

    Click Add, enter SSID Name, and choose Security Type (WPA2-PSK).

    Assign VLAN & Interface:

    Go to Configuration > VLANs

    Create VLAN 10 and assign it to the SSID.

    Enable APs:

    Go to Configuration > AP Management

    Verify APs are registered.

    8. Troubleshooting Common Issues

    IssueSolution
    APs not joining WLCEnsure APs have correct IP and VLAN settings.
    Clients not getting IPsVerify DHCP settings and VLAN assignments.
    Weak Wi-Fi signalAdjust AP placement, power levels, and channel settings.
    WLC GUI not accessibleEnsure HTTP/HTTPS access is enabled.

    9. Summary

    ✅ Basic WLC setup: Management IP, VLANs, DHCP.
    ✅ Configure SSID & Security: WPA2-PSK authentication.
    ✅ Ensure APs join WLC: AP management enabled, VLANs mapped.
    ✅ Save and verify configuration.