Dynamic / Static NAT order of preference

Discussion in 'Cisco' started by tmcgov05, Jan 30, 2006.

  1. tmcgov05

    tmcgov05 Guest

    When combining dynamic and static NAT for Inside-to-Outside
    translations, are the Static NAT entries given priority over the
    Dynamic ? Is there and order of preference ?

    In other words: If I have 4 Static 1:1 translations defined, must I
    have matching explicit deny commands in my Dynamic source-list ACLs to
    prevent my statics from being dynamically NATed first ? Or will the
    Static entries take precedence ?
    tmcgov05, Jan 30, 2006
    #1
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  2. tmcgov05

    erich Guest

    >From experience, the 1:1 statics take precedence, when they apply. Test
    it for your IOS version, tho.

    erich
    erich, Jan 30, 2006
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  3. tmcgov05

    tmcgov05 Guest

    yes - i did some testing (with a 12.2 version) and it does appear that
    statics take precedence. Damn if I can find an answer anywhere on CCO
    though....
    tmcgov05, Jan 31, 2006
    #3
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