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The examples below shows the VPC using Direct Connect , as having 10.92.104.0/23 as primary CIDR and 10.95.32.0/26 as secondary CIDR (used for utility subnets).
Private Network Extension
Private Subnet Route Table
| Destination | Target |
|
|---|
| 0.0.0.0/0 | NAT Gateway | public internet |
| 10.92.104.0/23 | local | primary VPC CIDR |
| 10.95.32.0/26 | local | secondary VPC CIDR |
| 10.0.0.0/8 | TGW | Cornell private CIDR |
Public Subnet Route Table
| Destination | Target |
|
|---|
| 0.0.0.0/0 | IGW | public internet |
| 10.92.104.0/23 | local | primary VPC CIDR |
| 10.95.32.0/26 | local | secondary VPC CIDR |
| 10.0.0.0/8 | TGW | Cornell private CIDR |
Hybrid Routing
Private Subnet Route Table
| Destination | Target | Notes |
|---|
| 0.0.0.0/0 | NAT Gateway | public internet |
| 10.92.104.0/23 | local | primary VPC CIDR |
| 10.95.32.0/26 | local | secondary VPC CIDR |
| 10.0.0.0/8 | TGW | Cornell private CIDR |
| 128.84.0.0/16 | TGW | Cornell public CIDR |
| 128.253.0.0/16 | TGW | Cornell public CIDR |
| 132.236.0.0/16 | TGW | Cornell public CIDR |
| 192.35.82.0/24 | TGW | Cornell public CIDR |
| 192.122.235.0/24 | TGW | Cornell public CIDR |
| 192.122.236.0/24 | TGW | Cornell public CIDR |
Public Subnet Route Table
| Destination | Target |
|
|---|
| 0.0.0.0/0 | IGW | public internet |
| 10.92.104.0/23 | local | primary VPC CIDR |
| 10.95.32.0/26 | local | secondary VPC CIDR |
| 10.0.0.0/8 | TGW | Cornell private CIDR |
"All Campus" Routing
Private Subnet Route Table
| Destination | Target | Notes |
|---|
| 0.0.0.0/0 | NAT Gateway | public internet |
| 10.92.104.0/23 | local | primary VPC CIDR |
| 10.95.32.0/26 | local | secondar VPC CIDR |
| 10.0.0.0/8 | TGW | Cornell private CIDR |
| 128.84.0.0/16 | TGW | Cornell public CIDR |
| 128.253.0.0/16 | TGW | Cornell public CIDR |
| 132.236.0.0/16 | TGW | Cornell public CIDR |
| 192.35.82.0/24 | TGW | Cornell public CIDR |
| 192.122.235.0/24 | TGW | Cornell public CIDR |
| 192.122.236.0/24 | TGW | Cornell public CIDR |
Public Subnet Route Table
| Destination | Target | Notes |
|---|
| 0.0.0.0/0 | IGW | public internet |
| 10.92.104.0/23 | local | primary VPC CIDR |
| 10.95.32.0/26 | local | secondary VPC CIDR |
| 10.0.0.0/8 | TGW | Cornell private CIDR |
| 128.84.0.0/16 | TGW | Cornell public CIDR |
| 128.253.0.0/16 | TGW | Cornell public CIDR |
| 132.236.0.0/16 | TGW | Cornell public CIDR |
| 192.35.82.0/24 | TGW | Cornell public CIDR |
| 192.122.235.0/24 | TGW | Cornell public CIDR |
| 192.122.236.0/24 | TGW | Cornell public CIDR |
