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Forum Discussion

Krishna_251070's avatar
Krishna_251070
Icon for Nimbostratus rankNimbostratus
Jul 07, 2016

IP routing in LTM

Hi Experts,   This is my first post here and I am a newbie to F5 world. I was trying to install a BigIP LTM device.   I created a Server VLAN and a ClientVIP VLAN assigned self-ip to interfaces...
application delivery
LTM
Krishna_251070's avatar
Krishna_251070
Icon for Nimbostratus rankNimbostratus
Jul 07, 2016

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 }

 

Vijay_E's avatar
Vijay_E
Icon for Cirrus rankCirrus
Jul 07, 2016
For bi-directional traffic initiation, you need to enable the VS on all the VLANs. The "vlans-enabled" tells you that the VS is listening for traffic only on the VLAN selected. So, the traffic initiated from any other VLAN will be ignored by the forwarding VS.