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explorer-monorepo/PROXMOX_FIREWALL_CHECK_REPORT.md

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# Proxmox Firewall Check Report
**Date**: 2026-01-21
**Status**: ✅ **Proxmox Firewall Not Blocking Traffic**
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## Summary
**Proxmox firewall is disabled on both hosts**, so it is **NOT blocking external traffic** to NPMplus or VMID 5000.
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## Host Firewall Status
### r630-01 (NPMplus Host)
- **Firewall Status**: `disabled/running`
- **Impact**: Firewall is disabled, not blocking any traffic
- **VMID 10233 (NPMplus)**: No firewall restrictions
### r630-02 (VMID 5000 Host)
- **Firewall Status**: `disabled/running`
- **Impact**: Firewall is disabled, not blocking any traffic
- **VMID 5000 (Blockscout)**: No firewall restrictions
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## Firewall Configuration Files
### Host Firewall Configs
- **r630-01**: No host firewall config file found (or empty)
- **r630-02**: No host firewall config file found (or empty)
### Cluster Firewall Config
- **Status**: No cluster firewall config found (or empty)
### Container Firewall Configs
- **VMID 10233 (NPMplus)**: No firewall option in container config
- **VMID 5000 (Blockscout)**: No firewall option in container config
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## Conclusion
**Proxmox firewall is NOT the issue**
The Proxmox firewall is disabled on both hosts, so it cannot be blocking external traffic. The timeout issue is **NOT caused by Proxmox firewall**.
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## Root Cause Analysis
Since Proxmox firewall is not blocking:
1. **UDM Pro Firewall** - Most likely cause:
- Rule order issue (block rules before allow rules)
- Zone-based firewall blocking External → Internal
- Port forwarding rules not enabled
2. **ISP Blocking** - Possible cause:
- Some ISPs block ports 80/443
- Test from different network/location
3. **Network Routing** - Less likely:
- Traffic not reaching UDM Pro
- WAN interface not receiving traffic
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## Next Steps
Since Proxmox firewall is not the issue, focus on:
1. **UDM Pro Firewall Rule Order**:
- Verify "Allow Port Forward..." rules are at the top
- Ensure no "Block External → Internal" rules are above them
2. **Test from Different Location**:
- Test from mobile hotspot
- Test from VPN
- This will determine if ISP is blocking
3. **Check UDM Pro Logs**:
- Look for blocked connections
- Identify which rule is blocking (if any)
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## Verification
**Proxmox hosts are NOT blocking traffic:**
- ✅ Firewall disabled on r630-01
- ✅ Firewall disabled on r630-02
- ✅ No firewall rules configured
- ✅ Containers have no firewall restrictions
**The issue is elsewhere:**
- ⚠️ UDM Pro firewall (most likely)
- ⚠️ ISP blocking (possible)
- ⚠️ Network routing (less likely)
---
**Status**: ✅ **Proxmox Firewall Check Complete - Not Blocking**