Symptom
Vrom vManage a template cannot be attached to an ISR4321 across multiple cEdge devices
vManage is on 19.2.3 and cEdge is on 16.12.4.
Symptoms include the following:
1. vManage was getting "application communication failure" while attaching the template to ISR4321 device.
2. Device reset does not appear to have any impact on resolving the issue.
3. Removed device from vEdge serial list and then added it again, however, the issue still persists.
4. Invalidated device and re-added and the still issue persist.
5. Within the nesd logs it is confirmed that the template push is failing due to a bad cli. CLI 'ip nat route vrf 65528 0.0.0.0 0.0.0.0 global' this CLI appears to have been automatically added still vManage is trying to push it as part of the template.
Workaround
There is no known workaround.
