F5 Application Delivery Fundamentals — Question 43

A BIG-IP has a virtual server at 150.150.10.10:80 with SNAT automap configured. This BIG-IP also has a SNAT at 150.150.10.11 set for a source address range of 200.200.1.0 / 255.255.255.0. All other settings are at their default states. If a client with the IP address 200.200.1.1 sends a request to the virtual server, what is the source IP address when the associated packet is sent to the pool member?

Answer options

• A. 200.200.1.1
• B. 150.150.10.11
• C. Floating self IP address on VLAN where the packet leaves the system
• D. Floating self IP address on VLAN where the packet arrives on the system

Correct answer: C

Explanation

The correct answer is C because with SNAT automap configured, the source IP address is replaced with the floating self IP address on the outgoing VLAN. Option A is incorrect as the original client IP is not preserved, and option B refers to the SNAT IP which is not used for the outgoing packet. Option D describes the IP address on the incoming VLAN, which is not relevant for the source IP on the outgoing packet.