Masquerading Clients

Ive got an few towers on which I run OSPF. Now all these towers are connected using /29 and /30 addresses. Ive then got an RB at the Base which is connected to an ADSL modem, Which has got an Masquerade rule on in.

Each tower also needs the masquerade rule on it, in order to supply my customers with Internet. As soon as I disable the masquerade rule on the tower ( where the clients dial PPPOE) they dont have any internet. nor does my tower.

I need to split certain customers at the base to go onto a different ADSL line, then the rest.Only way I can think of doing this is disabling the Masquerade rule on the tower, and mangle it at the base.

Problem is as soon as I disable Masquerade on the tower, no Internet Connectivity.

What am I doing wrong?

Masquerade - I have this running on the Clients CPE and not on the AP’s

I need to split certain customers at the base to go onto a different ADSL line

Load balance the different ADSL lines, this will give you redundancy when a line goes down as it stands a client routed to say adsl line1 will lose internet connectivity if this lines goes down but on a load balance that same client is connected to available adsl line(s).