IPS 4255 with version 5.1.1 ftp download problem

[ramachandra.p]

Hi,

I am using 4255 IPS sensor with inline connection between outside of the pix firewall and internet router ethernet port. I am facing a problem while downloading file from FTP server, from the log i found that signature 1330 is firing for particular this issue. I disabled the same 1330 with subsignature still it is giving same problem.

Please help me to resolve this issue.

Regards,

Ram

[ebreniz]

Signature 1330 is related to TCP Reassembly. What sub-signature is firing. The below link describes the sub-signature reasons.

http://www.cisco.com/en/US/products/hw/vpndevc/ps4077/products_configuration_guide_chapter09186a00804cf507.html#wp1035678