La IP de la consola, la asignas tu.
En el evox.ini.
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[Network]
SetupNetwork = Yes
StaticIP = Yes
Ip = 192.168.0.2 <-- La IP d la Xbox
Subnetmask = 255.255.255.0
Defaultgateway = 192.168.0.1 <-- Aqui pon la IP del PC
DNS1 = 0.0.0.0
DNS2 = 0.0.0.0
SkipIfNoLink = No
SetupDelay = 10
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Salu2.