I am trying to allow SMTP through a PIX 525 running ver 7.2(2). When the banner comes back to the server it is 2's and astericks (*). I have done the "no inspection esmtp" commmand in the global policy, so that should turn off the inspection. However I still get the astericks in the banner. How can I get the PIX to let the banner through?
The device on the inside of the firewall is trying to connect to the mail server on the outside of the firewall. If I connect to the mail server from a device on the outside of the firewall the header returns fine. Only when the connection originates from the device on the inside going to the device on the outside does the header get obfuscated.
I test by telneting to port 25 on the mail server.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...