I noticed a difference in behavior between pping (using nmap) on rhel/centos6 and rhel/centos7. Our leaf switches are half on 172.30/16 (isolated mgt lan) and half on 172.29/16 (shared with main 172.20/16 network). On old management node, pping leaf returns all 18. On new management node leaf03: ping leaf04: ping leaf05: ping leaf06: ping leaf09: ping leaf11: ping leaf30: ping leaf07: noping leaf08: noping leaf10: noping leaf20: noping leaf21: noping leaf22: noping leaf23: noping leaf24: noping leaf25: noping leaf26: noping leaf27: noping
Using pping -f works fine, except that the pping script doesn’t know that fping lives in /usr/sbin. For some reason pping/ nmap 5.51 is able to get responses from all hosts on the command line even if they are on different networks, but pping/ nmap 6.40 does not. If I remove “—send-ip” option it works fine on both old and new management nodes. Previously it worked either way. This works now, nmap -PE --system-dns -sn leaf07 leaf08 leaf10 leaf03 leaf04 leaf05 This doesn’t on rhel7 nmap -PE --system-dns --send-ip -sn leaf07 leaf08 leaf10 leaf03 leaf04 leaf05 Finally, nmap manual page deprecates -sP in favor of -sn. Thanks, — ddj Dave Johnson Brown University CCV / CIS ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ xCAT-user mailing list xCAT-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcat-user
