Assuming you already know all this but sometimes it just helps to start from ground zero and go through the data flow to see where things stop working.
Ping -a uses the reverse lookup zones. Do they exist for the failing subnet? Assuming yes, are they properly updated? -- There are 10 kinds of people in the world... those who understand binary and those who don't. From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On Behalf Of Stefan Jafs Sent: Tuesday, October 25, 2016 1:10 PM To: ntsysadm@lists.myitforum.com Subject: RE: [NTSysADM] Ping -a does not work anymore Ping works fine but not ping -a also same problem with nslookup works on subnet 1 but not on the others 192.168.1.100 works fine, 192.168.21.34 not but can be pinged __________________________________ Stefan Jafs From: listsad...@lists.myitforum.com<mailto:listsad...@lists.myitforum.com> [mailto:listsad...@lists.myitforum.com] On Behalf Of HELP_PC Sent: Tuesday, October 25, 2016 02:43 To: ntsysadm@lists.myitforum.com<mailto:ntsysadm@lists.myitforum.com> Subject: RE: [NTSysADM] Ping -a does not work anymore But what do you get if you just ping without -a ? GuidoElia HELPPC-HELPPCSERVICE ________________________________ Da: listsad...@lists.myitforum.com<mailto:listsad...@lists.myitforum.com> [listsad...@lists.myitforum.com] per conto di Stefan Jafs [sj...@amico.com] Inviato: lunedì 24 ottobre 2016 19.50 A: ntsysadm@lists.myitforum.com<mailto:ntsysadm@lists.myitforum.com> Oggetto: RE: [NTSysADM] Ping -a does not work anymore So to narrow it down, I can ping -a my subnet, and resolve name, however I can't resolve other subnets I assume its my DNS server settings then. __________________________________ Stefan Jafs From: listsad...@lists.myitforum.com<mailto:listsad...@lists.myitforum.com> [mailto:listsad...@lists.myitforum.com] On Behalf Of CESAR.ABREG0 . Sent: Tuesday, October 18, 2016 17:15 To: ntsysadm@lists.myitforum.com<mailto:ntsysadm@lists.myitforum.com> Subject: Re: [NTSysADM] Ping -a does not work anymore Most certainly is in our case. It is a highly secure environment. On Tue, Oct 18, 2016, 2:06 PM Micheal Espinola Jr <michealespin...@gmail.com<mailto:michealespin...@gmail.com>> wrote: I can only imagine that this is a firewall/filtering related issue for you. As Don pointed out, this functionality works across all versions of Windows. -- Espi On Tue, Oct 18, 2016 at 12:46 PM, Stefan Jafs <sj...@amico.com<mailto:sj...@amico.com>> wrote: For some reason ping -a does not resolve any DNS name anymore, it used to work, tried it on 2 PC's and 2 Servers. Google is no help, any ideas? __________________________________ Stefan Jafs -- Questo messaggio e' stato analizzato con Libra ESVA ed e' risultato non infetto. Clicca qui per segnalarlo come spam.<http://mx01.enter.it/cgi-bin/learn-msg.cgi?id=7772B40154.A5268> Clicca qui per metterlo in blacklist<http://mx01.enter.it/cgi-bin/learn-msg.cgi?blacklist=1&id=7772B40154.A5268>