4.157.52.193.in-addr.arpa domain name pointer P880-MSA.univ-rouen.fr.
Host 6.157.52.193.in-addr.arpa not found: 3(NXDOMAIN)
7.157.52.193.in-addr.arpa domain name pointer P880-MADRI.univ-rouen.fr.
12.157.52.193.in-addr.arpa domain name pointer lsb2.univ-rouen.fr.