Why do i require self ip and floating ip ? if i am configuring HA and have 5 VLANS in active device , do i need to have 5 floating IPs ?

When do you need self IP? Self IPs are used for:

• Monitors (source address is Appliance Self IP)
• Connection to backend servers (how to route traffic to server if you do not have IP?)
• Need to create a floating IP... local self IP is required to create floating IP.

When do you need floating IP? Floating IPs are used for:

• routing needs as explained by boneyard
• SNAT automap use egress floating ip, self ip if no floating is defined

When do you not need self IP?

• There is no need to create self IP on external VLAN if there is no outbound connections. A virtual server does not need self IP. VS use auto last hop to route response without route and self IP.

When do you not need floating IP?

• If SNAT pool is used instead SNAT automap, floating IP is not needed on internal VLAN