🛰️ NOC Network Simulation – Cisco Packet Tracer

This project simulates a basic Network Operations Center (NOC) environment using Cisco Packet Tracer.
It includes routing, VLANs, dynamic IP addressing, centralized monitoring, logging, configuration backups, and time synchronization.

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🗺️ Network Topology

• 2 Routers: Cairo, Alex
• Switches in each region
• Multiple End Devices (PCs, Servers)
• NOC Server (192.168.200.10) providing:
  • DHCP
  • SNMP
  • Syslog
  • NTP
  • TFTP

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✅ Implemented Features

• IP Addressing and Static Routing
• VLAN Configuration
• DHCP Server for dynamic IP allocation
• SNMP Monitoring with MIB Browser
• Syslog Server for event tracking
• NTP Time Synchronization
• TFTP Backup/Restore of router configurations
• Access Control Lists (ACLs) for basic traffic filtering

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🔧 Services Configuration

📡 DHCP Server

• Scope: 192.168.10.0/24
• Start IP: 192.168.10.100
• Default Gateway: 192.168.10.1
• Subnet Mask: 255.255.255.0

🔒 Access Control List (ACL)

To block devices from network 192.168.20.0/24 from accessing the NOC server:

access-list 10 deny 192.168.20.0 0.0.0.255  
access-list 10 permit any  
interface g0/2  
ip access-group 10 out  

✅ Result: Devices in the denied network fail to ping 192.168.200.10.

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⏰ NTP Configuration

• NTP Server: 192.168.200.10
• All routers synchronized to the same time.
• Verified using show clock and show ntp associations

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🧪 SNMP Monitoring

• SNMP enabled on all routers and switches
• Tested using MIB Browser
• Example OID: .1.3.6.1.2.1.2.2.1.10.1 (Incoming traffic on Interface 1)
• SNMP community string: public

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🖥️ Syslog

• Syslog Server: 192.168.200.10
• Logs router activities and interface status
• Logging command:

logging 192.168.200.10

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🔁 TFTP Backup & Restore

• TFTP Server IP: 192.168.200.10
• Backup command: copy running-config tftp
• Restore command: copy tftp running-config
• Filename example: cairo-router-backup

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🧠 Skills Demonstrated

• Network segmentation (VLANs)
• Address planning and static routing
• Service integration (DHCP, SNMP, TFTP, NTP)
• Basic security with ACLs
• Network documentation and logical thinking

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📌 Notes

• Project built with Cisco Packet Tracer
• Some services (e.g., NTP, SNMP Walk) are partially simulated
• Screenshots and topology available if needed

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🔗 GitHub Repository

github.com/Manar-Hossam/NOC-Network-Simulation