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Aws private/public vpc/nat gateway multiaz pattern [on hold]

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2

I am in doubt while creating my vpc in AWS. My goal is to have a multiAZ private network in regions A, B and C, but i am a little confused about the best way to create the public part and nat gateway for this network.

It is correct for me to create only one public network with one NATgatway to all my network or, since i have 3 availability zones, i should have 3 public networks and 3 NATgateways?

I guess i should make one NATgateway per network, but i would end up with 4 ou 6 route tables... Is this the best way to do it?

amazon-web-services networking

share|improve this question

edited Mar 8 at 18:55

Techmago

asked Mar 8 at 16:16

TechmagoTechmago

1159

put on hold as off-topic by Cody Gray♦ Apr 11 at 7:13

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Questions on professional server- or networking-related infrastructure administration are off-topic for Stack Overflow unless they directly involve programming or programming tools. You may be able to get help on Server Fault." – Cody Gray

If this question can be reworded to fit the rules in the help center, please edit the question.

add a comment | 

2

I am in doubt while creating my vpc in AWS. My goal is to have a multiAZ private network in regions A, B and C, but i am a little confused about the best way to create the public part and nat gateway for this network.

It is correct for me to create only one public network with one NATgatway to all my network or, since i have 3 availability zones, i should have 3 public networks and 3 NATgateways?

I guess i should make one NATgateway per network, but i would end up with 4 ou 6 route tables... Is this the best way to do it?

amazon-web-services networking

share|improve this question

edited Mar 8 at 18:55

Techmago

asked Mar 8 at 16:16

TechmagoTechmago

1159

put on hold as off-topic by Cody Gray♦ Apr 11 at 7:13

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Questions on professional server- or networking-related infrastructure administration are off-topic for Stack Overflow unless they directly involve programming or programming tools. You may be able to get help on Server Fault." – Cody Gray

If this question can be reworded to fit the rules in the help center, please edit the question.

add a comment | 

I am in doubt while creating my vpc in AWS. My goal is to have a multiAZ private network in regions A, B and C, but i am a little confused about the best way to create the public part and nat gateway for this network.

It is correct for me to create only one public network with one NATgatway to all my network or, since i have 3 availability zones, i should have 3 public networks and 3 NATgateways?

I guess i should make one NATgateway per network, but i would end up with 4 ou 6 route tables... Is this the best way to do it?

amazon-web-services networking

share|improve this question

edited Mar 8 at 18:55

Techmago

asked Mar 8 at 16:16

TechmagoTechmago

1159

share|improve this question

edited Mar 8 at 18:55

Techmago

asked Mar 8 at 16:16

TechmagoTechmago

1159

share|improve this question

edited Mar 8 at 18:55

Techmago

asked Mar 8 at 16:16

TechmagoTechmago

1159

asked Mar 8 at 16:16

TechmagoTechmago

1159

asked Mar 8 at 16:16

TechmagoTechmago

1159

1 Answer
1

active

oldest

votes

3

The multi-AZ pattern I use is to create a public and private subnet per AZ used. Each public subnet will have its own NAT Gateway and each private subnet in that AZ will route through the corresponding public NAT AZ.

This image was taken from the ARC401.pdf reference below:

This provides high availability. If you lose an AZ the other AZ's will still function. Having only one NAT gateway creates a single point of failure.

References

• https://docs.aws.amazon.com/quickstart/latest/vpc/architecture.html


• http://awsmedia.s3.amazonaws.com/ARC401.pdf

share|improve this answer

edited Apr 11 at 7:13

slm

8,871106380

answered Mar 8 at 16:40

kenlukaskenlukas

1,69841418

add a comment | 

3

The multi-AZ pattern I use is to create a public and private subnet per AZ used. Each public subnet will have its own NAT Gateway and each private subnet in that AZ will route through the corresponding public NAT AZ.

This image was taken from the ARC401.pdf reference below:

This provides high availability. If you lose an AZ the other AZ's will still function. Having only one NAT gateway creates a single point of failure.

References

• https://docs.aws.amazon.com/quickstart/latest/vpc/architecture.html


• http://awsmedia.s3.amazonaws.com/ARC401.pdf

share|improve this answer

edited Apr 11 at 7:13

slm

8,871106380

answered Mar 8 at 16:40

kenlukaskenlukas

1,69841418

add a comment | 

3

The multi-AZ pattern I use is to create a public and private subnet per AZ used. Each public subnet will have its own NAT Gateway and each private subnet in that AZ will route through the corresponding public NAT AZ.

This image was taken from the ARC401.pdf reference below:

This provides high availability. If you lose an AZ the other AZ's will still function. Having only one NAT gateway creates a single point of failure.

References

• https://docs.aws.amazon.com/quickstart/latest/vpc/architecture.html


• http://awsmedia.s3.amazonaws.com/ARC401.pdf

share|improve this answer

edited Apr 11 at 7:13

slm

8,871106380

answered Mar 8 at 16:40

kenlukaskenlukas

1,69841418

add a comment | 

The multi-AZ pattern I use is to create a public and private subnet per AZ used. Each public subnet will have its own NAT Gateway and each private subnet in that AZ will route through the corresponding public NAT AZ.

This image was taken from the ARC401.pdf reference below:

This provides high availability. If you lose an AZ the other AZ's will still function. Having only one NAT gateway creates a single point of failure.

References

• https://docs.aws.amazon.com/quickstart/latest/vpc/architecture.html


• http://awsmedia.s3.amazonaws.com/ARC401.pdf

share|improve this answer

edited Apr 11 at 7:13

slm

8,871106380

answered Mar 8 at 16:40

kenlukaskenlukas

1,69841418

share|improve this answer

edited Apr 11 at 7:13

slm

8,871106380

answered Mar 8 at 16:40

kenlukaskenlukas

1,69841418

edited Apr 11 at 7:13

slm

8,871106380

edited Apr 11 at 7:13

slm

8,871106380

answered Mar 8 at 16:40

kenlukaskenlukas

1,69841418

answered Mar 8 at 16:40

kenlukaskenlukas

1,69841418