Configuration Details
VLAN Configuration
| VLAN ID |
Name |
IP Range |
Purpose |
| 10 |
Management |
192.168.1.0/24 |
Network device management |
| 20 |
LAN_Users |
192.168.10.0/24 |
Employee workstations |
| 30 |
Servers |
192.168.20.0/24 |
Server infrastructure |
| 40 |
WiFi_Users |
192.168.30.0/24 |
Wireless client devices |
| 50 |
IoT_Devices |
192.168.50.0/24 |
IoT and smart devices |
| 100 |
Guest |
192.168.100.0/24 |
Guest network access |
Sample Switch Configuration
! Core Switch Configuration Example
hostname CoreSwitch01
!
vlan 10
name Management
vlan 20
name LAN_Users
vlan 30
name Servers
!
interface vlan 10
ip address 192.168.1.2 255.255.255.0
no shutdown
!
interface GigabitEthernet1/0/1
description Uplink to Firewall
switchport mode trunk
switchport trunk allowed vlan 10,20,30,40,50,100
!
spanning-tree mode rapid-pvst
spanning-tree portfast default
Security Policies
Access Control Policies
- Administrative Access: SSH only, no Telnet
- SNMP: SNMPv3 with encryption
- Console Access: Local authentication required
- Enable Password: Encrypted enable secret
Network Segmentation
Network segmentation is implemented using VLANs and firewall rules:
- Guest network isolated from internal resources
- IoT devices in separate VLAN with limited internet access
- Server VLAN protected with strict access controls
- Management VLAN accessible only from admin workstations
Security Note: All inter-VLAN routing is controlled by firewall rules.
Default deny policy is enforced with explicit allow rules for required traffic.
WiFi Security Configuration
- Enterprise Network: WPA3-Enterprise with 802.1X authentication
- Guest Network: WPA3-Personal with captive portal
- IoT Network: WPA3-Personal with MAC address filtering
- Management: Hidden SSID for administrative access
Maintenance Procedures
Regular Maintenance Tasks
Daily Tasks
- Monitor network performance dashboards
- Review security alerts and logs
- Check backup status
- Verify critical services availability
Weekly Tasks
- Review bandwidth utilization reports
- Update network documentation
- Test backup and recovery procedures
- Review and update firewall rules
Monthly Tasks
- Firmware updates (after testing)
- Security patch management
- Performance optimization review
- Capacity planning assessment
Backup Procedures
- Configuration Backup: Automated daily backup of all device configurations
- Documentation Backup: Weekly backup of network documentation
- Log Backup: Continuous log forwarding to central syslog server
- Recovery Testing: Monthly recovery testing procedures
Important: Always test configuration changes in a lab environment before
implementing in production. Maintain rollback procedures for all changes.