my topology
internet======>Mikrotik=======>hotspot (with radius & userman)
-------------------||
-------------------||
-------------------||
-------------------||
[Ubuntu 10.10 as proxy server}
if i activate the nat of redirect to external proxy server my hotspot users can't login to the page login with error log radius not responding, but if i disable it,, everyting it's ok...
this is on redirect to squid
----------------
chain=dstnat action=dst-nat to-addresses=192.168.90.2 to-ports=3128
protocol=tcp src-address-list=LOKAL dst-address-list=!PUBLIC
in-interface=ether1-HOTSPOT dst-port=80,81,8080,8081,8088,3128
as well LOKAL is all of private address
and PUBLIC is my public ip
how to fix this problem tenk's