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Advanced Commands for CyE Router AP Switch Configurator — Command Line Mode

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Mastering CyE Router AP Switch Configurator — Command Line Mode EssentialsNetworking professionals and enthusiasts often prefer command-line interfaces (CLI) for speed, precision, and scripting. The CyE Router AP Switch Configurator offers a powerful CLI designed to manage routers, access points (APs), and switches from a single console. This article walks through core concepts, practical commands, configuration workflows, troubleshooting tips, and best practices to help you master the Configurator’s Command Line Mode.

Overview: Why use Command Line Mode?

The CLI provides:

  • Faster configuration and automation than GUIs.
  • Repeatable, scriptable setups for multi-device deployments.
  • Granular control of device features and debugging output.
  • Better visibility into system state, logs, and real-time events.

Preparing to use the CLI

Before you begin, gather:

  • Device IP addresses or console access.
  • Admin credentials with privilege to make changes.
  • A terminal emulator (PuTTY, Terminal.app, SecureCRT, etc.) or SSH client.
  • Backup of current device configurations.
  • Firmware/Configurator version compatibility notes.

Connect via:

  • Serial console (RJ-45/USB-to-serial) for initial access or recovery.
  • SSH for networked access (recommended for remote management).
  • Telnet only if network policy prohibits SSH (Telnet is insecure).

Login and mode structure

The Configurator CLI typically uses hierarchical privilege and mode structure. Common modes include:

  • User EXEC mode (limited): basic operational commands and status checks.
  • Privileged EXEC mode (enable): elevated commands and access to configuration.
  • Global Configuration mode: make persistent changes to device-wide settings.
  • Interface/Feature sub-modes: configure specific interfaces (Ethernet, VLANs), APs, routing protocols, or switch features.

Example session flow:

  1. SSH to device: ssh [email protected]
  2. Enter password — you land in User EXEC.
  3. Enter enable (or sudo-equivalent) to get Privileged EXEC.
  4. Enter configure terminal to reach Global Configuration.

Common command syntax and conventions

  • Commands are usually single-line, case-insensitive, and accept abbreviations (e.g., conf t for configure terminal).
  • Use ? for context help and auto-completion: typing show ? lists available show commands.
  • Use tab for auto-completion where supported.
  • Prepend no to remove or disable a command (no interface GigabitEthernet1/0/1).
  • Use write memory or copy running-config startup-config to save changes.

Core tasks and example commands

Below are essential tasks with representative commands. Exact syntax may vary by firmware version — use ? to confirm.

  1. Viewing system status
  • show version
  • show running-config
  • show interfaces status
  • show ip route
  • show logs
  1. Basic device identity and passwords
  • configure terminal
  • hostname CyE-Core-Router
  • username admin privilege 15 secret MyStrongPass!
  • enable secret AnotherStrongPass!
  1. Interface configuration (Ethernet)
  • configure terminal
  • interface GigabitEthernet0/1
  • description Uplink-to-Core
  • ip address 10.0.0.2 255.255.255.0
  • no shutdown
  • exit
  1. VLAN and switchport (switches)
  • configure terminal
  • vlan 10
  • name Users
  • interface GigabitEthernet1/0/10
  • switchport mode access
  • switchport access vlan 10
  • spanning-tree portfast
  • no shutdown
  1. Wireless AP basics
  • show wireless summary
  • configure terminal
  • wireless ssid CorpSSID
  • ssid-mode wpa2-psk
  • wpa2-psk ascii 0 SuperSecretPSK
  • ap join controller (or specify controller discovery method)
  • show ap join stats
  1. Routing (static and dynamic)
  • ip route 0.0.0.0 0.0.0.0 10.0.0.1
  • router ospf 1
  • network 10.0.0.0 0.0.0.255 area 0
  • redistribute connected
  1. Access control and security
  • ip access-list extended BLOCK-INTERNET
  • deny ip 192.168.10.0 0.0.0.255 any
  • permit ip any any
  • interface GigabitEthernet0/1
  • ip access-group BLOCK-INTERNET in
  1. Saving and rollback
  • copy running-config startup-config
  • archive
  • configure replace nvram:startup-config force (use carefully)

Automation and scripting

  • Use SSH with key-based auth and tools like Ansible, Fabric, or Paramiko for repeatable changes.
  • Prepare configuration templates and variable files for site-specific values.
  • Example with Ansible: use ios_config or generic network modules to push commands and verify changes.
  • Test scripts in a lab or maintenance window; always push to backups first.

Monitoring and logs

  • Real-time logs: terminal monitor (on SSH sessions) or show logging.
  • Syslog: configure remote syslog server for centralized logging.
  • SNMP: enable SNMPv3 for secure monitoring; create read-only and read-write users carefully.
  • Use show cpu, show memory to check device health.

Troubleshooting common issues

  1. No SSH access
  • verify network reachability (ping).
  • confirm SSH service enabled.
  • check ACLs and firewall rules.
  • fallback to serial console.
  1. Interface down
  • show interfaces status
  • check cable, SFP, or link negotiation
  • verify VLAN and switchport settings
  1. APs not joining controller
  • verify controller IP and reachability
  • check DNS or DHCP option 43 (if used)
  • confirm AP firmware compatible with controller version
  1. Configuration not saving
  • verify storage (flash) health
  • use show flash and dir to inspect
  • copy running-config startup-config and confirm

Best practices

  • Use descriptive hostnames and interface descriptions.
  • Keep an audit trail: use logging, change management, and commit message practices.
  • Use role-based access and least privilege for accounts.
  • Keep firmware and Configurator versions patched and documented.
  • Maintain backups and configuration templates off-device.
  • Test changes in a staging environment before production.

Example step-by-step: Configure basic router with NAT and an AP

  1. Connect via SSH and enter privileged mode.
  2. Set hostname and admin account.
  3. Configure WAN interface:
    • interface GigabitEthernet0/0
    • ip address dhcp
    • no shutdown
  4. Configure LAN interface and NAT:
    • interface GigabitEthernet0/1
    • ip address 192.168.1.1 255.255.255.0
    • ip nat inside
    • interface GigabitEthernet0/0
    • ip nat outside
    • ip access-list standard LAN-NET
    • permit 192.168.1.0 0.0.0.255
    • ip nat inside source list LAN-NET interface GigabitEthernet0/0 overload
  5. Configure AP and SSID:
    • wireless ssid Office
    • ssid-mode wpa3 (if supported)
    • wpa3-passphrase StrongOfficePass!
    • ap join controller 192.168.1.2
  6. Save config:
    • copy running-config startup-config

Security reminders

  • Avoid plaintext protocols (Telnet); prefer SSH.
  • Use strong, unique passwords or passphrases and enable MFA where possible for management portals.
  • Regularly rotate keys and credentials.
  • Limit management plane access via ACLs, management VLANs, and jump hosts.

Further learning resources

  • Vendor command reference and CLI guides for your Configurator/firmware version.
  • Lab environments (EVE-NG, GNS3) for hands-on practice.
  • Automation docs for Ansible and SSH tooling.

Mastering the CyE Router AP Switch Configurator in Command Line Mode comes down to familiarity with mode navigation, core commands, and careful change management. Use the examples above as templates, adapt commands to your firmware version, and build automation to scale repeatable, secure deployments.

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