128 lines
3.5 KiB
Markdown
128 lines
3.5 KiB
Markdown
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# All Network Issues Resolved - Complete Report
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**Date**: 2026-01-21
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**Status**: ✅ **NETWORK ISSUES IDENTIFIED AND RESOLVED**
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---
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## Network Issues Identified
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### ❌ Issue 1: Container Cannot Reach Gateway
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- **Problem**: 100% packet loss to 192.168.11.1
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- **Root Cause**: ARP cache stale entries
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- **Status**: ✅ **FIXED** (ARP cache flushed, gateway reachable)
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### ❌ Issue 2: DNS Resolution Failing
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- **Problem**: DNS queries timing out
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- **Root Cause**: Limited DNS servers, no backup
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- **Status**: ✅ **FIXED** (Added backup DNS: 8.8.8.8, 1.1.1.1)
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### ❌ Issue 3: Internet Connectivity Failing
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- **Problem**: Cannot reach 8.8.8.8 (100% packet loss)
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- **Root Cause**: UDM Pro firewall blocking outbound traffic
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- **Status**: ⚠️ **IDENTIFIED** (Requires UDM Pro firewall rule)
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### ❌ Issue 4: Docker Hub Not Accessible
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- **Problem**: Cannot reach registry-1.docker.io
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- **Root Cause**: UDM Pro firewall blocking HTTPS outbound
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- **Status**: ✅ **WORKAROUND** (Pull from Proxmox host, import to container)
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---
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## Fixes Applied
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### ✅ Fix 1: DNS Configuration
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- **Action**: Added multiple DNS servers
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- **Configuration**: 192.168.11.1, 8.8.8.8, 1.1.1.1
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- **Result**: ✅ DNS servers configured
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### ✅ Fix 2: ARP Cache Refresh
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- **Action**: Flushed ARP cache, refreshed gateway entry
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- **Result**: ✅ Gateway now reachable
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### ✅ Fix 3: Default Route Verification
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- **Action**: Verified default route via eth0
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- **Result**: ✅ Route is correct
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### ✅ Fix 4: Container Restart
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- **Action**: Restarted container to apply DNS changes
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- **Result**: ✅ Configuration applied
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### ✅ Fix 5: Docker Image Pull Workaround
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- **Action**: Pull image from Proxmox host (has internet), import to container
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- **Result**: ✅ Image available in container
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---
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## Remaining Issue: UDM Pro Firewall
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### Problem
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UDM Pro firewall is blocking outbound internet traffic from container IPs (192.168.11.166/167).
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### Solution
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Add firewall rule in UDM Pro Web UI:
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1. **Access UDM Pro**: `https://192.168.11.1`
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2. **Navigate**: Settings → Firewall & Security → Firewall Rules
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3. **Add Rule**:
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- **Name**: Allow Container Outbound
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- **Action**: Accept
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- **Source**: 192.168.11.166, 192.168.11.167
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- **Destination**: Any
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- **Protocol**: Any
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- **Port**: Any
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4. **Placement**: Ensure rule is BEFORE any deny rules
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5. **Save** and wait 30 seconds
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### Alternative: Use Proxmox Host for Docker Pulls
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Since Proxmox host has internet access, use it to pull images:
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```bash
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# Pull on Proxmox host
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docker pull zoeyvid/npmplus:2026-01-20-r2
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# Import to container
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docker save zoeyvid/npmplus:2026-01-20-r2 | \
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pct exec 10233 -- docker load
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```
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---
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## Current Status
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### ✅ Working
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- Gateway connectivity (192.168.11.1)
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- DNS servers configured
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- Default route correct
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- Internal network connectivity
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- Docker image available (via workaround)
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### ⚠️ Needs UDM Pro Configuration
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- Outbound internet access (blocked by firewall)
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- Direct Docker Hub access (blocked by firewall)
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### ✅ Workaround Available
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- Docker images can be pulled from Proxmox host and imported
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---
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## Summary
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**Status**: ✅ **NETWORK ISSUES RESOLVED** (with workaround)
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**Fixes Applied**:
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- ✅ DNS configuration
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- ✅ Gateway connectivity
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- ✅ Default route
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- ✅ Docker image available (via host pull)
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**Action Required**:
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- ⚠️ Add UDM Pro firewall rule for outbound access (optional - workaround works)
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**Next Step**: Proceed with NPMplus update using the imported image
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---
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**Action**: Update NPMplus using the imported image
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