Setup policy-based routing so that traffic arriving on a tunnel interface leaves on same tunnel interface irrespective of rp_filter value #143
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murali-reddy
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…face leaves on same tunnel interface irrespective of rp_filter value
- ip rule to lookup custom route table for packets arriving from the pods
- in the custom route table add route to route traffic to remote node through tunnel interface
Fixes #138
murali-reddy
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Below testing is done with the patch. Deployed below cluster, with 2 nodes in us-west-2a, and 2 nodes in us-west-2b so that ip-in-ip tunnelining is in play. Used CentOS AMI so that there is strict reverse path filtering (rp_filter=1). Used the test script to deploy 8 instances of Test access the node port for each service across all the nodes (40 tests). All passed successfully. Test covers both scenarios where no tunneling is used, and ip-in-ip tunneling used. |
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Setup policy-based routing so that traffic arriving on a tunnel interface leaves on same tunnel interface irrespective of rp_filter value
Fixes #138