This makes me more confused.
I have created a IP forwarding virtual server and bound it to VIP interface and now I can reach my server.
If I change the VLAN to Server subnet, my server will become unavailable again. However, the server is the one who points to LTM as gateway.
root@(ltm-01)(cfg-sync Standalone)(Active)(/Common)(tmos) list ltm virtual DG
ltm virtual DG {
destination 0.0.0.0:any
ip-forward
mask any
profiles {
fastL4 { }
}
source 0.0.0.0/0
translate-address disabled
translate-port disabled
vlans {
InboundVIP
}
vlans-enabled
vs-index 5
}