Hello
We have got two 3g sim cards giving us fixed ips 192.168.24.12 and 192.168.24.13. Outside connection is poor but locally is OK. And the other ISP is on eth1 with perfect outside connection. We are planing to place one 3g usb modem on mikrotik where eth1 is main internet and the other sim card to place in the phone that will connect through usb 3g on mikrotik to the internet by eth1. My thought was to create pptp vpn connection and make nat with out port eth1. Problem at first was when eth1 is on, USB 3g connection is unreacheable.
What can be solution? Thanks for the help.