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Cisco Bug: CSCvu02819 - if device discovered with loopback, cssm reachability fails due to enterprise ip

Last Modified

May 15, 2020

Products (1)

  • Cisco DNA Center

Known Affected Releases

DNAC-Antman DNAC1.3.3.4

Description (partial)

Symptom:
Device is having MGMT ip with reachability, but device is discovered using Loopback. which fails the licensing.

Conditions:
Use case 1: Discovered with Enterprise IP in loopback0 and Enterprise IP in Regular gig interface
Behavior: In this case, if there is a reachability to CSSM thru default route, we will be able to register license for device. Else, DNAC will throw a message, as - failed to reach CSSM


Use case 2: Discovered with Ent IP in loopback0 and Public IP in regular interface
Behavior: In this case, thru regular gig interface, there will be a reachability to the CSSM. Plus, name-server config will be without VRF. This should work.


Use case 3: Discovered with Public IP in MGMT interface and Ent IP in loopback0
Behavior: In this case, VRF config should be pushed as part of DNS config(name-server). This should work. But not the ideal scenario, as public IP may / may not be used for all devices in mgmt interface.

Use case 4: Discovered with Ent IP in loopback0 and Public IP in MGMT interface 
Behavior: this will not work unless there is reachability to CSSM thru enterprise nw IP. VRF config will also not be present in name-server config.
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