PPP
Setup:
launch host with:
| Code Block |
|---|
pppd -detach crtscts lock proxyarp <local IP>:<remote IP> /dev/ttyUSB1 921600 |
launch client with:
| Code Block |
|---|
sudo pppd -detach crtscts lock defaultroute noauth <local IP>:<remote IP> /dev/ttyO1 921600 |
make sure IP forwarding is enabled on the host:
| Code Block |
|---|
sysctl -w net.ipv4.ip_forward=1 cat /proc/sys/net/ipv4/ip_forward |
useful websites:
http://www.ducea.com/2006/08/01/how-to-enable-ip-forwarding-in-linux/
http://www.tldp.org/HOWTO/PPP-HOWTO/direct.html
wiring
Impulse pin numbers from the micromodem implementation doc.
pin | color | impulse | breakout color | ftdi color |
|---|---|---|---|---|
com1rx | yellow | 1 | black | orange |
com1tx | green | 3 | red | yellow |
com2tx | orange | 2 | white | yellow |
com2rx | blue | 4 | green | orange |
com2cts | grey | 5 | orange | green |
com2rts | purple | 6 | yellow | brown |
v+ | red | 7 | brown | nc |
gnd | black | 8 | blue | black |