68 lines
1.4 KiB
Markdown
68 lines
1.4 KiB
Markdown
# Internet Monitor
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## Hardware
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### Primary target
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- [Waveshare ESP32-S3](https://www.waveshare.com/esp32-s3-lcd-1.3.htm?sku=30558) ([docs](https://www.waveshare.com/wiki/ESP32-S3-LCD-1.3))
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- [W5500 Ethernet Module](https://www.az-delivery.de/en/products/w5500-ethernet-netzwerk-internet-modul-fuer-arduino)
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## Test procedure
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1. Check physical link
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- Ethernet unplugged?
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2. Run DHCP / IPv4 config
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- IP assigned?
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- Subnet?
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- Gateway?
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- DNS server?
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3. Run SLAAC / IPv6 config
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- IP assigned?
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- Subnet?
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- Gateway?
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- DNS server?
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3. Test local Gateway
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- Router reachable? IPv4, IPv6
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4. Routing/Uplink
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- Ping 1.1.1.1, 8.8.8.8, 9.9.9.9
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- Ping 2606:4700:4700::1111, 2001:4860:4860::8888, 2620:fe::fe
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5. DNS
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- Resolve google.com, cloudflare.com, example.com
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- Timeout?
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- NXDOMAIN?
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6. S2S VPN
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- Ping other side
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7. Packet throughput
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8. Measure latency
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9. Measure temperature inside rack
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## Display
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```
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🟢 ONLINE
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Latency: 23ms
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Packet loss: 4.2%
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IPv4: 192.168.0.123/24
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IPv6: 2001:d8::1234:5678:90ab:cdef/64
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Temperature: 42°C
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```
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## Future ideas
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- Prometheus endpoint
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- Test Wifi
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# Build
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1. Setup ESP IDF
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- Using Nix
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```
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nix develop
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```
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- Manually
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- Check correct version in flake
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- Setup IDF per docs: https://docs.espressif.com/projects/esp-idf/en/stable/esp32/get-started/index.html#installation
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2. Configure?
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3. Compile
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4. Flash
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