2021-01-25 22:55:35 -05:00
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| Supported Targets | ESP32 | ESP32-S2 |
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| ----------------- | ----- | -------- |
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2020-02-25 15:48:06 -05:00
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# PPP over Serial test
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Testing connection of PPP client (ESP) to PPP server (raspberry pi)
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## Pin Assignment
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| ESP | rpi |
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| ------ | -------------- |
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| GPIO25 | UART-RX |
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| GPIO26 | UART-TX |
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| GND | GND |
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## Test workflow
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* Starts PPP server on a linux host
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* Starts PPPoS client on ESP board
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* Connects with both IPv4 and IPv6
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* Test IPv6 connection
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- Start server on ESP
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- Have linux host to connect and exchange some data
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* Test IPv4 connection
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- Start server on linux host
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- Connect with ESP to the server and exchange some data
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* Pass/fail
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## Manual test
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### Server side
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```
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sudo pppd /dev/ttyAMA0 115200 CONFIG_TEST_APP_PPP_SERVER_IP:TEST_APP_PPP_CLIENT_IP modem local noauth debug nodetach dump nocrtscts
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```
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or with `+ipv6` to support ipv6 assignment
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### IPv6 test
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Connect to the ESP local link address and send data, e.g.
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```
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nc fe80::74d7:edc5:9907:5457 2222
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```
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### IPv4 tst
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Server side expects to run tcp server on port 2222
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```
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nc -l 2222
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```
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## Test environment
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configuration `Example_PPP` see wikis/test-docs/example-test-env#example_ppp
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