Isa server 2004 Internal network can not access ftp site

hi

i have configured isa server 2004 for ftp allowed on default port 21

My isolated ftp site is accessible from external network but it is not
accessible from internal network

It connects to site but after it gives error

227 entering passive mode
426 connection closed

But if i try to access it with my local ip it works fine this error
comes when i try to access with my external ip from internal network.


Please help me out.


thanks & regardes,

kalrav shah

.

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