[44net] Doing Gateway from Cellular Modem feed ?

Hi there Has someone tried doing A gateway with cellular modem ? I understand that cellular modems (at least in our country) do few times NAT (carrier-grade nat) and therefore the IP it get is not an IP accessible from the outside world so probably cant do any IPIP to the 44 net router Is that true ? or is there any solution ? We dont have IPV6 systems here yet which might overcome this problem only IPV4 any Info on the subject is appreciated Regards Ronen -4Z4ZQ http://www.ronen.org [http://www.ronen.org/My-QSl.jpg]<http://www.ronen.org/> Ronen Pinchooks (4Z4ZQ) WebSite<http://www.ronen.org/> ronen.org (Ronen Pinchooks (4Z4ZQ) WebSite) is hosted by domainavenue.com www.ronen.org