Highway Testing certificate for ARM

Hello

We are currently testing for Core Expressway and Edge certificates.

To give you an overview on the current configuration, the edge of the highway is deployed only DMZ (single NIC) and its IP address is coordinated to the public IP address. The core of the Express way communicates with highway with its internal IP 10.100.100.1 and not the IP NAT. Configuration area of track Express Core customer journey, the peer address configured is 10.100.100.1.

We have set up two zones traversal - ARM and B2B.

Traversal B2B area is active but MRA is inactive and TLS not created due to issues certificates.

We have generated CSR on highways and let what he signed by our internal CA for test only. But in the actual production, we will move CSR from the edge of the highway to the public CA for signing.

We have already downloaded the certificates signed by our internal CA for highways as well as the root certification authority.

But the test of course secure control, we had this problem:

We need to enter the FULL name of the edge of the highway and not its IP address when you test the secure course? Because when we're looking for the FULL (edge.external.com) domain name it is said to be inaccessible. Or because there is no communication between the base and edge on the FULL domain name? Should we allow core contact Expressway edge FQDN?

We already created Expressway on DNS FQDN outer edge and can be solved with his (public) IP NAT. SRV records have already been created on external DNS as well.

Please advice. Thank you in advance.

No probs, it's time to give back to the community, I started! :)

OK, with a single NIC, both your internal and external DNS for the edge of the freeway entries must resolve to your external IP address.

Your firewall must then perform the reflection of NAT when Expressway Core communicates with edge he does not go straight up to your ISP but rather internal rest.

If you had double NIC for Edge then internal DNS for Edge would point to internal private IP (inside the NETWORK card) so therefore avoiding complexity around NAT reflection.  I much prefer this scenario and it is easier than what you see two deck troubleshooting network captures.

Adam

Tags: Cisco Support

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