explorer-monorepo/UDM_PRO_DIAGNOSIS_RESULTS.md

UDM Pro SSH Diagnosis Results

Date: 2026-01-21
UDM Pro IP: 192.168.11.1
SSH User: OQmQuS
Status: ✅ SSH Connection Successful

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Connection Status

✅ SSH Connection: Working
✅ Authentication: Successful
⚠️ Command Execution: Commands executing but output needs verification

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Diagnosis Commands Run

1. System Information

uname -a

2. Port Forwarding Rules (NAT Table)

iptables -t nat -L PREROUTING -n -v | grep "76.53.10.36"

What to check:

• Should show DNAT rules for 76.53.10.36:80 → 192.168.11.166:80
• Should show DNAT rules for 76.53.10.36:443 → 192.168.11.166:443

3. Firewall Rules (FORWARD Chain)

iptables -L FORWARD -n -v | head -40

What to check:

• Look for ACCEPT rules for 192.168.11.166:80
• Look for ACCEPT rules for 192.168.11.166:443
• Check rule order (allow before block)

4. Firewall Rules for NPMplus

iptables -L FORWARD -n -v | grep -i "192.168.11.166"

What to check:

• Should show ACCEPT rules
• Should NOT show DROP/REJECT rules

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Expected Findings

If Port Forwarding is Working:

DNAT       tcp  --  0.0.0.0/0      76.53.10.36        tcp dpt:80  to:192.168.11.166:80
DNAT       tcp  --  0.0.0.0/0      76.53.10.36        tcp dpt:443 to:192.168.11.166:443

If Firewall Allows Traffic:

ACCEPT     tcp  --  0.0.0.0/0      192.168.11.166     tcp dpt:80
ACCEPT     tcp  --  0.0.0.0/0      192.168.11.166     tcp dpt:443

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Next Steps

Based on the diagnosis results:

1. If NAT rules are missing: Enable port forwarding rules in Web UI
2. If firewall is blocking: Add allow rules or reorder rules in Web UI
3. If rules are disabled: Enable them in Web UI
4. If rule order is wrong: Reorder rules in Web UI

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Status: Diagnosis in progress - checking command output...