What is a characteristic of private IPv4 addressing?

While private addresses are used within organizations that might have VPNs, the characteristic of private addresses is not specifically *for* traversing a VPN to an outside organization; NAT is typically used at the border for internet access, and VPNs encapsulate private traffic.

Private addressing itself does not supply redundancy; redundancy is achieved through redundant devices, links, and protocols, not the address type.

Private IPv4 addressing allows organizations to use IP addresses internally without consuming scarce public IPv4 addresses, as these private addresses are not routed on the public internet. This practice, often combined with Network Address Translation (NAT), enables many internal devices to share a limited number of public IP addresses, thereby alleviating the shortage of public IPv4 addresses.

Private addressing does not directly reduce the forwarding table on network routers; while NAT can simplify external routing, internal routing still requires knowledge of private subnets.