Preview Tool

Cisco Bug: CSCvt70976 - JIRA Bug: MAGLEV-10849 -- DNA Center-Enhance ETCD server DNS lookup behavior in Cisco Umbrella envir

Last Modified

Aug 07, 2020

Products (1)

  • Cisco DNA Center

Known Affected Releases


Description (partial)

DNAC install failure. This bug is to enhance the ETCD lookup when kube-dns is not available.

During the issue, below output show umbrella  block page(X.X.X.X) is presented to DNAC instead of which causes ETCD to break.

$ netstat -tnlp | grep 2379
(No info could be read for "-p": geteuid()=1234 but you should be root.)
tcp        0      0 X.X.X.X:2379*               LISTEN      <<<<<<<<<<<<< umbrella  block page
tcp        0      0*               LISTEN      -

$ nslookup localhost
Server:         Y.Y.Y.Y
Address:        Y.Y.Y.Y#53

Non-authoritative answer:
Name:   localhost.default.svc.cluster.local
Address: X.X.X.X <<<<<<<<<<<<<umbrella  block page

Cisco Umbrella environment.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.