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Routing between two Cisco CSR1000v instances on AWS

in flag

I'm building a lab in AWS with Cisco CSR1000v virtual routers. I've tried both the below options.

  • In option 1, there's no way to force the traffic from linux1 or 2 to the respective CSR routers since it's all in the same VPC, so it didn't work. I was able to share routers between the routers to the Linux subnets with RIP but not OSPF (since it uses multicast addressing - not allowed in VPC) Option1 diagram
  • In option 2, I can route traffic from linux through CSR but the CSRs can't share routes over peered VPC, elastic IP or transit gateway... Option2 diagram - I've followed this lab to achieve this.

Has anyone been able to pull this off? I just need a small lab like this to run some tests.

Any ideas would be appreciated.

Tim avatar
gp flag
Tim
Are you following a tutorial or are you making it up yourself? If you're using a tutorial please edit your question to include a link.
kaziman avatar
in flag
Thanks Tim - it's a bit of both and lots of time experimenting... I've added the link to the lab in the question above for option 2
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in flag

for the next person stumbling on this, I've found a solution! CSR is a full blown virtual router, so it's a really good way to learn Cisco technology and networking in general.

Because I was deploying in AWS, to get routing protocols working, I had to create a IPSec tunnel first between the two routers and then run EIGRP through them. This is captured well in the video here. If more routes need to be added, a hub/spoke model can also be used - see here.

Hope it helps!

Ginnungagap avatar
gu flag
This could benefit from having more information in the question itself rather than as links to YouTube or Cisco as links tend to change or disappear. I'm not saying a full transcription and links can be useful but at least a general gist of what's behind the links would be appreciated.
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