enabling ipv6 nat for cluster IP

Author: sulibot

kubernetes/apps/networking/cilium/app/values.yaml

@@ -58,7 +58,7 @@ mtu: 1450
 
 # Native routing CIDRs - ULA for intra-cluster native routing
 ipv4NativeRoutingCIDR: 10.101.0.0/16        # Entire Cluster IPv4 (Pods + Nodes)
-ipv6NativeRoutingCIDR: fd00:101::/48        # Entire Cluster IPv6 ULA (Pods + Nodes)
+ipv6NativeRoutingCIDR: fd00:101:224::/60        # Entire Cluster IPv6 ULA (Pods + Nodes)
 
 # BPF configuration optimized for Talos + Istio Ambient
 # forwardKubeDNSToHost is ENABLED in Talos machine config (Legacy Mode)