In a GSLB Active/Active environment, the connection proxy is used as the site persistence method. What is used to source the traffic when the connection is proxied?

• A. LDNS IP Address
• B. Client source IP
• C. Virtual IP
• D. Subnet IP (SNIP)

Answer: (D)

In this setup, the connection proxy needs a stable source address for the traffic it forwards to the backend sites. That role is filled by the Subnet IP (SNIP). The SNIP is the egress address the Citrix ADC uses for outbound connections, including proxied traffic, so the backend servers consistently see the same source and return traffic can be routed correctly. This is essential for site persistence when DNS may direct clients to different sites in an Active/Active GSLB deployment.

The LDNS IP address is used for DNS resolution, not for sourcing proxied traffic. The client’s original IP would not be reliable as the source for proxied traffic in this scenario. The virtual IP is the frontend address clients connect to, not the source address used by the proxy when forwarding to servers.