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KALKUNET SIMULATION LABSSKKNI • LKS SMK TKJ • MTCNA • CCNA • LPIC-1 • RHCSA15 PROGRESSIVE LOCKED LEVELS (30 MISSIONS TOTAL)● Ready to Learn

Hands-on Simulation: Networking Lab & Linux Lab

Integrated infrastructure engineering lab aligned with Cisco CCNA, CompTIA Network+, RedHat RHCSA, and Linux Foundation LFCS standards with 15 progressively locked levels. Complete each level sequentially to unlock the next challenge!

DIFFICULTY FILTER:
Completed: 0 / 15 Level • All Levels Unlocked (Teacher Mode)

🧮8-Bit Binary Flipper & Subnet Analyzer

Decimal Value: 0

Click each bit to toggle (0/1). Helps calculate netmask & wildcard octets.

Quick Presets:
Binary: 00000000 • Wildcard Octet: 255 (255 - Decimal)
Mask: 255.255.255.0

Visual Topology & Animated Packet Flow

Path Status: ACTIVE
☁️ISP Core📡R1-GW (192.168.10.1)🔀SW-Admin (24p)💻LAN 192.168.10.0/24
● BeginnerCCNA 200-301 • IPv4 Addressing Fundamentals (/24)

Level 1: Admin Office LAN Gateway Allocation (/24)

📋 Scenario & Problem Statement:The Administration building needs a LAN for 200 PCs using standard block 192.168.10.0/24.
Target Network Allocation:192.168.10.0/24
🛡️ Unique Student Question Variant: Active (Anti-Copy Seed)
💡 Enter dotted-decimal format
💡 First Usable IP = Network ID + 1
💡 Broadcast address
💡 Total usable hosts = 2^h - 2

Simulation Scenario Catalog & Self-Paced Training Curriculum (Levels 1 to 15)

Aligned with SKKNI, Vocational Competencies, MikroTik MTCNA/MTCRE, Cisco CCNA, CompTIA Network+, RedHat RHCSA EX200, and Linux Foundation LFCS.

🟢 Beginner TierLevel 1 - 3

Network Foundations & Linux Essentials

Master IPv4 /24 to /26 subnetting, LAN gateways, SSH private key permissions (chmod 600), directory ownership (chown -R), and daemon restarts (systemctl restart).

Target: Junior Network & Sysadmin Support
🟡 Intermediate TierLevel 4 - 7

VLSM, DMZ Subnets & Incident Mitigation

PTP links /30, DMZ /29 offset .8, VLSM /27 offset .32, /28 troubleshooting, systemctl enable boot, 100% disk vacuum (journalctl --vacuum-size), UFW firewall (ufw allow), and rogue process termination (kill -9).

Target: MTCNA / CCNA & LPIC-1
🔴 Advanced TierLevel 8 - 15

OSPF Wildcard, BGP/CGNAT & RHCSA Master

OSPF Wildcard Mask /26 (0.0.0.63), campus supernetting /22, CGNAT PPPoE /21, SSH brute-force audit (grep auth.log), kernel default route (ip route), listening socket audit (ss -tulpn), Nginx test (nginx -t), SSH hardening (sshd_config), Docker container status (docker ps), DNS lookup (dig +short), and filesystem mount validation (mount -a).

Target: MTCRE, CCNA, RHCSA EX200 & LFCS

Full Lab Scenario Curriculum (Network Lab)

● Beginner⚡ Active

Level 1: Admin Office LAN Gateway Allocation (/24)

The Administration building needs a LAN for 200 PCs using standard block 192.168.10.0/24.

SKKNI J.611000.004.01
● Beginner● Ready to Learn

Level 2: Floor 1 Network Division for 100 PCs (/25)

Floor 1 needs a subnet for 100 PCs by splitting a /24 block in half into 192.168.20.0/25.

SKKNI J.611000.004.01
● Beginner● Ready to Learn

Level 3: 50-PC Exam Lab VLAN Segmentation (/26)

VLAN 30 for the Exam Lab requires addressing for 50 PCs using 192.168.30.0/26.

LKS SMK TKJ & MTCNA
● Intermediate● Ready to Learn

Level 4: Inter-Router Point-to-Point WAN Link (/30)

The Point-to-Point fiber link between Core and Branch Routers only needs 2 IPs using 10.10.10.0/30.

MTCNA / CCNA
● Intermediate● Ready to Learn

Level 5: DMZ Public IP Sub-Block (/29 Starting at .8)

The ISP assigned the second /29 sub-block 203.0.113.8/29 for your DMZ Firewall and Web Servers.

SKKNI J.611000.005.02
● Intermediate● Ready to Learn

Level 6: Finance Division VLSM Block (/27 Starting at .32)

After .0/27 was assigned to HR, Finance (25 PCs) receives the second block: 192.168.40.32/27.

LKS SMK Nasional & CCNA
● Intermediate● Ready to Learn

Level 7: Troubleshoot Client IP 192.168.50.37/28 (Find Network ID!)

A client PC has IP 192.168.50.37/28 but cannot reach the internet due to a wrong Gateway IP. Find the exact subnet boundaries containing .37!

Troubleshooting Jaringan Nasional
● Advanced● Ready to Learn

Level 8: OSPF Backbone Area Wildcard Mask Calculation (/26)

When advertising 10.20.30.64/26 into OSPF or Cisco ACLs, you must calculate the Wildcard Mask (255.255.255.255 minus the Subnet Mask).

MTCRE / CCNA Routing
● Advanced● Ready to Learn

Level 9: 1,000-Host Campus Wi-Fi Supernetting (/22)

The campus roaming Wi-Fi requires over 1,000 IPs in a single VLAN using 172.16.8.0/22 (combining four /24 blocks).

CCNA Enterprise
● Advanced● Ready to Learn

Level 10: Final ISP CGNAT Architecture for 2,000 Subscribers (/21)

As an ISP Network Architect, you allocate CGNAT block 100.64.16.0/21 (RFC 6598) to serve up to 2,000 FTTH PPPoE subscribers.

Standar ISP Nasional (RFC 6598)
● Advanced● Ready to Learn

Level 11: Class B Private Enterprise Architecture for 4,000 Hosts (/20)

A multinational HQ requires an enterprise segment for 4,000 endpoints using RFC 1918 Class B block 172.20.16.0/20.

Cisco CCNA 200-301 & RFC 1918
● Advanced● Ready to Learn

Level 12: Cross-Octet OSPF Route Summary Wildcard Mask (/22)

An OSPF ABR summarizes 4 branch networks into 10.100.4.0/22. You must calculate the exact OSPF Wildcard Mask (255.255.255.255 minus /22 Netmask)!

CCNA 200-301 & MTCRE
● Advanced● Ready to Learn

Level 13: Troubleshoot PoE IP Camera 192.168.88.105/27 (Find Subnet Boundaries!)

An IP Camera at 192.168.88.105/27 fails to reach the NVR on another VLAN due to a wrong Gateway. Find the exact /27 subnet boundaries containing .105!

CompTIA Network+ N10-009
● Advanced● Ready to Learn

Level 14: eBGP Dual-Homed Public Prefix Advertisement (/23)

Your Data Center advertises public IPv4 block 198.51.100.0/23 over eBGP to two Tier-1 upstream ISPs.

BGP Autonomous System & APNIC Peering
● Advanced● Ready to Learn

Level 15: Master Exam — Data Center Spine-Leaf Fabric for 8,000 VMs (/19)

Final Master Challenge! Design the primary supernet 10.240.32.0/19 for a hyperscale Proxmox & Kubernetes fabric hosting over 8,000 VMs/containers.

Data Center Spine-Leaf Fabric