PPPOE ppp.conf ifaddr config

[Lists]

Hi All

Has anyone successfully configured a ppp.conf file to have 2 differnt C 
class addresses specified in the ppp.conf?

ie:
 set ifaddr 203.5.3.1 203.5.3.2-203.5.3.254 255.255.255.255

I need to add another  c class from another IP range

Regards

Tim