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IDS MC Automatic Signature Download

Hi all,

I am trying to make VMS automatic sig. download work through a firewall.

Does anyone know what IP, protocol and ports need to be opened on a firewall in order to enable VMS to automatically download Signature Update?

I tried to sniff the communications exchange and it seems that initially VMS connect to Cisco site (198.133.219.25) via Https but it then initiate an Http connection to another Ip (198.133.219.27) which corresponds to ftp-sj.cisco.com. Is it correct? Is the Ip associated to cisco ftp site always the same? I mean is it virtual or do I risk that it changes from time to time?

Thanks a lot

Chiara

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