We need to provide for several clients secure access to their network but they don't want to place any extra equipment. So we plan to install some equipment on our premises in order to terminate initiated by small routers and dial-up users traffic on our equipment (VPN concentrator) which will forward terminated traffic to appropriate customer HQ via not crypted line.
In other words we need solution in order to provide VPN (pptp and l2tp and IPsec) service for our customers. And such solution should use on their side low specs router and simple dial-up but on our side some concentrator which will terminate secured traffic from different sources and after that split and forward it to appropriate customer by GRE or direct link.
Does anybody have expirience with such case?
