| modem | Operador | protocolo | red | disponible | tunnel funcional? |
|---|---|---|---|---|---|
| ztemf180 | claro | DNS | wan | no | |
| ztemf180 | claro | ICMP | wan | no | |
| ztemf180 | tigo | DNS | wan | no | dnscat2 |
| ztemf180 | tigo | ICMP | wan | no | |
| ztemf180 | tigo | WHOIS | wan | no |
- https://github.com/iagox86/dnscat2
- https://dnstunnel.de/
- https://weworkweplay.com/play/getting-gps-location-and-transmit-over-3g-edge-gsm-with-arduino-or-raspberry-pi/
- https://www.multitech.net/developer/wp-content/uploads/2010/10/S000463C.pdf
- https://my.freenom.com