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Forum Discussion

nekau_65641's avatar
nekau_65641
Icon for Nimbostratus rankNimbostratus
Apr 07, 2008

Using same LB for servers on multiple subnets

We are soon putting our newly purchased BIG-IP 3400's into production is a redundant configuration.     I have used Cisco LB's before, and the inside interface where the servers are only suppor...
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David_Martin's avatar
David_Martin
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Apr 20, 2015

Adam and L4L7 are ok.

 

Just a brief basic summary.

 

Forwarding ip VS with destination 0.0.0.0/0, All protocols, enabled on vlan INSIDE. It will forward all incoming traffic on vlan INSIDE using bigip routing table. It is the bigip default gateway

 

ForwardingL4 VS with destination 0.0.0.0/0, All protocols, enabled on vlan INSIDE. It will forward incoming traffic on vlan INSIDE using a pool of gateways configured in the virtual server. With this type of VS you can create one pool per gateway and forward traffic changing the pool.

 

Note: Be aware, With forwardingL4 BS you can set up a pool with many different gateways and have an automatic outgoing load balance of traffic but you should think on things like SNAT or session persistence to make it work correctly.