<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> As far as I know, this cannot be done we had to write this into the code ourselves. <table class="status" border="0" width="100%"> <tbody> <tr> <td class="statusHOSTUP"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tbody> <tr> <td align="left"> <table border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td class="statusHOSTUP" align="left" valign="center"><a href="http://nagios/nagios/cgi-bin/extinfo.cgi?type=1&host=bldr">bldr</a> </td> </tr> </tbody> </table> </td> <td align="right" valign="center"> <table border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td align="center" valign="center"><a href="http://nagios/nagios/cgi-bin/extinfo.cgi?type=1&host=bldr#comments" title="This host has 1 comment associated with it"><img src="cid:part1.08060701.05070402@lssi.net" alt="This host has 1 comment associated with it" border="0" height="20" width="20"></a></td> <td align="center" valign="center"><a href="http://nagios/nagios/cgi-bin/utilmenu.cgi?HOST=BLDR&HOSTGROUP=AIX" title="Open Utility Menu for this Host" target="utils" onclick='javascript:window.open("http://nagios/nagios/cgi-bin/utilmenu.cgi?HOST=BLDR&HOSTGROUP=AIX","utils","width=300,height=150,toolbar=0,location=0,status=0,resizable=1,scrollbars=1")'><img src="cid:part2.02090203.07020703@lssi.net" alt="Open Utility Menu for this Host" border="0" height="20" width="20"></a></td> <td> </td> <td><a href="http://nagios/nagios/cgi-bin/status.cgi?host=bldr" title="View Service Details For This Host"><img src="cid:part3.03000005.01090700@lssi.net" alt="View Service Details For This Host" border="0"></a></td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </td> <td class="statusHOSTUP">UP</td> <td class="statusOdd" nowrap="nowrap">04-26-2004 12:50:17</td> <td class="statusOdd" nowrap="nowrap"> 2d 22h 27m 20s</td> <td class="statusOdd"><a href="http://nagios/nagios/cgi-bin/traceroute.cgi?bldra">PING OK - bldra (Packet loss= 0%, RTA=0.23 ms)</a> <a href="http://nagios/nagios/cgi-bin/traceroute.cgi?bldrb">PING OK - bldrb (Packet loss= 0%, RTA=0.20 ms)</a> <a href="http://nagios/nagios/cgi-bin/traceroute.cgi?bldrc">PING OK - bldrc (Packet loss= 0%, RTA=0.19 ms)</a> <a href="http://nagios/nagios/cgi-bin/traceroute.cgi?bldrd">PING OK - bldrd (Packet loss= 0%, RTA=0.68 ms)</a> </td> </tr> </tbody> </table> Spencer Samuel Petreski wrote: <blockquote cite="mid005601c42bb4$79466260$06008281@Control1" type="cite"> <meta http-equiv="Content-Type" content="text/html; "> <meta name="ProgId" content="Word.Document"> <meta name="Generator" content="Microsoft Word 9"> <meta name="Originator" content="Microsoft Word 9"> <link rel="File-List" href="cid:filelist.xml@01C42B8A.8FAB35A0">  <style>  </style> <div class="Section1"> Hi,<o:p></o:p>  <o:p></o:p> I was looking into using Nagios for Enterprise wide monitoring and am very impressed with all the capabilities, but ran into following question:<o:p></o:p>  <o:p></o:p> 192.168.0.1 192.168.0.2 192.168.1.21<o:p></o:p> -------------------- --------------------192.168.1.1 --------------------<o:p></o:p> | Router 1 |----------------------------| Router 2 |----------------------------| Nagios |<o:p></o:p> -------------------- -------------------- --------------------<o:p></o:p> 192.168.0.9 \ / 192.168.0.5<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> \ /<o:p></o:p> 192.168.0.10\ / 192.168.0.6<o:p></o:p> --------------------<o:p></o:p> | Router 3 |<o:p></o:p> --------------------<o:p></o:p> | 192.168.2.1<o:p></o:p> |<o:p></o:p> | 192.168.2.2<o:p></o:p> -------------<o:p></o:p> | Switch1|<o:p></o:p> -------------<o:p></o:p>  <o:p></o:p> Can Nagios monitor the individual interfaces between the routers in order to inform me when a link/interface goes down? I’m mainly interested if monitoring Router 3, to have Router 1 and Router 2 as dependencies, but also to know if the link between Router 1 and Router 2 goes down, because Nagios will be able to reach Router 3 through the link between Router 2 and Router 3.<o:p></o:p>  <o:p></o:p> Any help would be greatly appreciated and if further information is required, please feel free to let me know.<o:p></o:p>  <o:p></o:p> --Samuel<o:p></o:p>  <o:p></o:p> P.S. If this is a cross post, please let me know where I can find the original post.<o:p></o:p> </div> </blockquote> </body> </html>