AWS Network Load Balancer now supports Listener Rules for custom traffic routing

This article announces listener rules support for AWS Network Load Balancer, enabling custom traffic routing based on source IP address type.

• Route IPv6 and IPv4 client traffic to separate target groups from a single dual-stack NLB
• Preserve original client IP address end-to-end for both address families
• Eliminates need for separate load balancers or protocol translation
• Supported on TCP, UDP, TCP_UDP, and TLS listeners
• Works with existing NLB features like connection draining and cross-zone load balancing
• Available in all AWS commercial and GovCloud regions at no additional charge

Listener rules simplify dual-stack architectures by enabling Layer 3 conditional routing without additional infrastructure or IP translation overhead.