dual nics allows a number of interesting things--like separate VLANs for management (SNMP traps, for example) and production traffic. Alternately, one could run some sort of load-balanced networking thing, separate virtual web servers, etc...
hint: just be sure whether you want routing on or off...
There are as many strategies as there are potential subnets... and each one is better than the last, depending on how you line 'em up... :-D JTB
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