On Sun, 7 May 2006, Jacob Yocom-Piatt wrote: > to check UDP port 500, i've tried to list a service with "check_command > check_udp!500". i cannot get this to work on the local or remote gateway. > nagios > issues the status information "No data was received from host!". when i issue > a > "nmap -P0 -sU -p 500 <either gateway>" i get > > PORT STATE SERVICE > 500/udp open|filtered isakmp
This is to be expected with UDP. If the listening service checks the incoming packet then there will never be a response as the UDP check package will not match the required ISAKMP content. So if one is to test the existing of ISAKMP then the check must attempt to setup a VPN to make sure the first response will match the protocol. There are scanners out there where you might wrap a small shell script around to do the test remotely. See also: http://www.nta-monitor.com/tools/ike-scan/ Hugo. -- I hate duplicates. Just reply to the relevant mailinglist. [EMAIL PROTECTED] http://hvdkooij.xs4all.nl/ Don't meddle in the affairs of magicians, for they are subtle and quick to anger. ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
