FTP access issue over NAT

[puneetj_mrt]

I have configured the NAT for FTP on the FWSM .

static (INSIDE-HTTPGTW,INTERNET) tcp 21.22.39.13 20 172.6.1.15 20 netmask 255.255.255.255
static (INSIDE-HTTPGTW,INTERNET) tcp 21.22.39.13 21 172.6.1.15 21 netmask 255.255.255.255

access-list INTERNET-ACCESS-IN line 16 extended permit tcp any host 21.22.39.13 eq ftp

When I tried to access the ftp through public ip , it doesn't respond . If I access ftp server through private ip from inside the network , it works fine.

Please help to resolve the issue.

[Murali]

Did you try using the passive ftp mode ? or ftp inspection may be required.

Thanks

Murali

[puneetj_mrt]

Passive mode ...