Prioritize S2S VPN on AWS when using 1 VGW

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Asked 4 months ago

Modified 4 months ago

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We have the following AWS setup:

We have 4 sites, each connected to our VPC with 2 S2S VPN connections.

Currently, all routes in the routing table with destinations to on-premises CIDR blocks have the single VGW as the target.

Is there a straightforward way to prioritize one of the two S2S connections over the other for egress traffic out of the VPC?

edited Mar 8 at 0:24

Tim

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asked Mar 7 at 15:10

J88

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In your route table you could try to add more specific routes for the connections you want to prioritise.
– Tim
Commented Mar 8 at 0:24
That's not really possible , 2 s2s vpns point to the same on prem, we just want one of them to be prioritized above the other due to speed specs
– J88
Commented Mar 8 at 7:11
For example you could break a /24 into two /25s, or a /8 into two /9s. You might also be able to tweak things with a combo of BGP and static routing as per the docs docs.aws.amazon.com/vpn/latest/s2svpn/VPNRoutingTypes.html
– Tim
Commented Mar 8 at 21:18

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