infrastructure/vlan1_infrastructure.md
2026-07-26 22:12:38 -04:00

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# VLAN 1 — Infrastructure / Default Network
Subnet: **192.168.100.0/24**
Last Updated: 2026-05-21
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## 🧩 What This Network Is
VLAN 1 is the **primary infrastructure network** for the KingDezigns environment.
It hosts core systems, gateway services, UniFi management, and essential network hardware.
This VLAN is treated as a **semitrusted zone**, allowing broad internal communication while still blocking access from lowertrust networks such as IoT and Lab.
This network remains active during ongoing migration and should not be aggressively restricted until all infrastructure is fully relocated.
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## 📡 Access Types
- LAN / Cable
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## 🌐 Subnet
- **192.168.100.0/24**
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## 🖥️ Expected Devices
- Infrastructure devices
- Core services
- UniFi gateway management
- Switches & access points
- Emergency recovery access
- At least one wired management workstation
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## 🔒 Security Rules for VLAN 1
### **Outbound (VLAN 1 → Others)**
- VLAN 1 can initiate connections to **all internal VLANs**
(VLAN 1, 10, 20, 30, 40, 50).
### **Inbound (Others → VLAN 1)**
- **Allowed:**
- VLAN 20 (Trusted) → VLAN 1
- **Blocked:**
- VLAN 30 (IoT) → VLAN 1
- VLAN 50 (Lab/Servers) → VLAN 1
- **Undefined (depends on default policy):**
- VLAN 40 (Guest) → VLAN 1
### **Net Effect**
- VLAN 1 can reach every internal VLAN.
- Trusted devices may reach VLAN 1.
- IoT and Lab cannot initiate into VLAN 1.
- Guest access depends on global default rules.
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## ⚠️ Important Notes
- Infrastructure remains on VLAN 1 during migration.
- Avoid strict firewall enforcement until migration is complete.
- Maintain at least one wired management workstation for safety.
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## 🧠 Summary for AI Systems
- VLAN 1 = **infrastructure + management zone**, semitrusted.
- Can initiate connections to all VLANs.
- Trusted VLAN 20 may initiate into VLAN 1.
- IoT VLAN 30 and Lab VLAN 50 are blocked from initiating into VLAN 1.
- Guest VLAN 40 behavior depends on default policy.
- All VLANs may send DNS to Pihole in VLAN 50.
- VLAN 1 is a reachable core network but protected from lowertrust zones.
---
# ✔️ End of File