Centralized Egress

Flow Description & Diagram

# Hop description
1 DB host to SS host, 0–> TGW
2 TGW Attachment RT 0/ –> Sec VPC
3 Sec VPC TGW Attach RT 0/ –> GWLBe
4 GWLBe magic: GWLB (GENEVE) –> CGNS and return back to GWLBe
5 GWLBe RT Spoke–> TGW
6 TGW Propagated RT –> SS Spoke/Host
1 SS Host to Internet 0/–> TGW
2 TGW Attachment RT 0/ –> Sec VPC
3 Sec VPC TGW Attach RT 0/ –> GWLBe
4 GWLBe magic: GWLB (GENEVE) –> CGNS and return back to GWLBe
5 GWLBe RT 0/ –> NATGW
6 NATGW (egress NAT) 0/ –> IGW
7 IGW –> Internet host
8-13 Reverse flow

centegress

Testing Procedure

  1. SSH to any of the hosts in Database or SharedServices Spoke (either NLB + :8022, :8033, :8044)
    1. Ping 8.8.8.8
    2. Curl www.google.com
  2. Search for the internal IP of the EC2 Host you’re sending the ping/curl from

egress-log