DefaultEngine.ini (1.8.0 and above, ue 4.25+)
[OnlineSubsystem]
DefaultPlatformService=EOS
[/Script/OnlineSubsystemEOS.NetDriverEOS]
NetConnectionClassName="OnlineSubsystemEOS.NetConnectionEOS"
bIsUsingP2PSockets=true
[/Script/Engine.GameEngine]
!NetDriverDefinitions=ClearArray
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemEOS.NetDriverEOS",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")
DefaultEngine.ini (Legacy pre v1.8.0)
[OnlineSubsystem]
DefaultPlatformService=EOSCore
[/Script/OnlineSubsystemEOSCore.EOSNetDriver]
NetConnectionClassName="OnlineSubsystemEOSCore.EOSNetConnection"
[/Script/Engine.GameEngine]
!NetDriverDefinitions=ClearArray
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemEOSCore.EOSNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")
[EOSCore]
bEnabled=true
bDebugging=true
bAutoLogin=false
ProductId=xxx
SandboxId=xxx
DeploymentId=xxx
ClientId=xxx
ClientSecret=xxx
ProductName=EOSCore Product
ProductVersion=1.0