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What is the VPC subnet route priority when two targets have the same default 0.0.0.0/0 route as the destination?
0
If a public subnet has an attached route table with the following routes:
| Destination | Target |
|---|---|
| 0.0.0.0/0 | nat-gateway-id |
| 0.0.0.0/0 | igw-gateway-id |
Which entry will take priority?. Is order considered in such case?
- Tags
- Amazon VPC
- Language
- English
asked 6 years ago2.4K views
1 Answer
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1
In a VPC route table, you cannot have two targets with static routes for the same destination network. For example, the subnet route table already has a default route 0.0.0.0/0 pointing to <igw-gateway-id> and if you try to add another default route 0.0.0.0/0 pointing to <nat-gateway-id> in the same route table, will result in the error message: "The route identified by 0.0.0.0/0 already exists."
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