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ASA 5510 - Allowing Ports 993 & 587

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  • ASA 5510 - Allowing Ports 993 & 587

    I'm trying to setup IMAP & SMTP for clients to access Exchange from the outside. I have everything working internally IMAP requires SSL on 993 and SMTP requires TLS on 587, now I just need my ASA 5510 configured. I'm using the ASDM (but can use the CLI if needed) to create the security policy and NAT rule. This is the part I need help with. In teh list of services, there isn't an option to have theses protocols use a different port apart from their native ports.

    Thanks.

  • #2
    Re: ASA 5510 - Allowing Ports 993 & 587

    You have to configure PAT as something like this:

    static (inside,outside) tcp interface 993 <ip address of exchange server> 993 netmask 255.255.255.255
    access-list outside_access_in permit tcp any interface outside eq 993
    access-group ouside_access_in in interface outside

    (found it on here but changed the port numbers)
    http://www.experts-exchange.com/Secu..._24014443.html
    Marcel
    Technical Consultant
    Netherlands
    http://www.phetios.com
    http://blog.nessus.nl

    MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
    "No matter how secure, there is always the human factor."

    "Enjoy life today, tomorrow may never come."
    "If you're going through hell, keep going. ~Winston Churchill"

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