Guys,
We are renting a half 19" rack in a datacenter, i have a routerboard (os 5.2) which connect to a pptp server, this works fine… If my internet connection (uplink) dies i want to have a backup (backdoor) connection.
Using netwatch (ping 8.8.8.
and scripts i’m able to manage the pptp connection
if 8.8.8.8 is pingable, the routerboard has a pptp connection to a server, this works fine
if 8.8.8.8 is not pingable, the script:
- enables the wireless interface
- connects to a open network (available)
- sets a route over the wireless network to the pptp-server
- requests a new dhcp-lease on the wireless interface
- and starts a new pptp to the same pptp server
connecting to the wireless network works fine, estabilishing a pptp sesion also works, but the wireless router is blocking gre, therefor the tunnel wont work (remember, a direct connection works fine).
since pptp is designed to work like this, i need something else.
Which protocol/service can i use to connect my mikrotik box, behind a nat gateway, to a server on the internet?
ps. the ip of the nat gateway might change every now and then.
thanks!