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James_78615's avatar
James_78615
Icon for Nimbostratus rankNimbostratus
Jan 22, 2013

SNAT automap on non-floating-ip egress interface

Hi All,   Have an urgent issue on an Active/Standby LTM pair with SNAT Automap configured on the virtual server. I do NOT have a floating-ip on the server side vlan.   As per following link, th...
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 22, 2013

Hi James,

Here's a quick and dirty example that should allow you to specify a different SNAT IPs per BIG-IP in an HA pair:

when RULE_INIT {
    set static::hostname [info hostname]
}
when CLIENT_ACCEPTED {

    switch $static::hostname {
        unit1.example.com {
            snat 1.1.1.1
        } 
        default {
            snat 1.1.1.2
        }
    }
}

Longer term, it would be better to specify a new SNAT IP in a SNAT pool for more graceful handling of failovers.

Aaron