I'm having an issue trying to open port 25 on our cisco ASA 5510 version 9.1 (2). When a wire tap is placed on the outside port between the ASA and the internet we are getting hits on wireshark, when a port 25 trace from http://www.yougetsignal.com/tools/open-ports is run. No hits or activity is showing up on the debug log using ASDM, even when filtering is applied.
Problem is we cannot open port 25 traffic from the outside network to the inside network so that smtp mail can flow to the Exchange server *.102. Mail can go from the inside network to the ouside network and out to the internet no problems (internal being the most trusted obviously).
Please find attatched the config for the ASA. I have replaced the companyname/domain with "ourcompanyname", our public IP to "ourpublicIP", our ISP to OurISP and our internal IP's with *.*.*.* for sanitisation reasons.
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
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...