Company A acquires Company B, and both users need reliable access to internet, SaaS, and each other’s private apps across overlapping RFC1918 ranges. A legacy VPN for a third-party integration is retained temporarily, causing intermittent route conflicts and noticeable latency.
Which action should the administrator prioritize to stabilize access and minimize network-level collisions?
A. Move all private app traffic to a shared MPLS core and rely on centralized firewalls to normalize flows while keeping split-tunnel for internet.
B. Expand the legacy VPN mesh while tightening BGP route filters and defer access transformation until after IP renumbering concludes.
C. Onboard private apps into ZPA with app segments and dedicated connector groups per environment, enable Client Connector forwarding for private access, and use ZIA with local Internet breakouts plus Bandwidth Control and Microsoft 365 optimization.
D. Implement SD-WAN steering policies to pin traffic to preferred links and apply ACLs for disallowed subnets as an interim control.
