AWS: What does 0.0.0.0/0 and ::/0 mean?
The default route in Internet Protocol Version 4 (IPv4) is designated as the zero-address 0.0.0.0/0 in CIDR notation, often called the quad-zero route. The subnet mask is given as /0, which effectively specifies all networks, and is the shortest match possible. The other would be for IPv6 Source Default Route AWS Documentation Security Groups for Your … Read more