choose-lb-int-tcp-proxy 1
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1 IPv6 termination is available if you configure the load balancer in Premium Tier.
2 Choose external TCP/UDP network load balancing if you need to ensure that the load balancer is located in a particular region, or if you want to configure IPv6 load balancing (with dual-stack backends). The latter is only available for backend service-based network load balancers.
3 External TCP/UDP network load balancers use regional external IP addresses that are accessible by clients anywhere.
4 Clients in a VPC network or in a network connected to a VPC network.
5 The global external HTTP(S) load balancer (classic) can be configured to be effectively regional in Standard Tier.
6 Client source IP preservation is available in certain configurations by using the PROXY protocol.