is it possible to do a reverse DNS lookup from one pod to another in the same namespace on Kuberenetes? Setup: Kubernetes 1.5, kube-dns 1.9

When I exec a pod with nslookup I don't get a hostname but only a nslookup timeout like:

$ time kubectl exec mypod -- nslookup 172\.18\.14\.13

nslookup: can't resolve '(null)': Name does not resolve Name:     
172.18.14.13 Address 1: 172.18.14.13

real 0m5.592s

mypod2 does have the internal IP 172.18.14.13. Both mypod and mypod2 have been deployed to the same namespace (default).

A nslookup from mypod to mypod works:

$ time kubectl exec mypod -- nslookup 172\.18\.58\.13
nslookup: can't resolve '(null)': Name does not resolve

Name:      172.18.58.13
Address 1: 172.18.58.13 mypod

real    0m0.403s

Do I have to configured something special or isn't it possible by design?