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NAT range of ports - Cisco 1941 router

I have a PBX server and need a range of ports to be NAT'd with a single IP address. NAT works when I do a static one to one NAT but when I do range, it doesn't work. The firmware version is 15.0 (1r) M16. Below is my access-list and nat statement.


access-list 102 permit tcp any any eq 2123
access-list 102 permit udp any any eq 5060
access-list 102 permit udp any any range 10000 20000
access-list 102 permit udp any any range 5004 5020


ip nat pool NATPOOL prefix-length 24 type rotary
ip nat inside destination list 102 pool NATPOOL


I can access port 2123 from outside. But unable to get anything working on the range 10000-20000 and range 5004-5020.


Please help!

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