The WAN (eth1) of my 450G router is configured with 59.xxx.xxx.xxx/30 IP address and the LAN (eth2) with BGP routed 110.xxx.xxx.xxx/24 IP address pool.I want to redistribute LAN side public IP pool with /28,/30 and /32 subnet to my clients.Please guide me.

hi it is simple. you need to create a point to point subnet /30(public or private) to customer router and then via static route or via dynamic routing you can subnet the entire public network annuced by your bgp router,

hope this help