I have run nmap (linux) and SuperScan (W2K) to scan a particular IP address and port. It of course doesn't give return times like an ICMP echo nor is there a "port traceroute" type facility to determine where a port may be blocked in transit (would be nice, though, eh?). SuperScan only performs TCP scans; nmap can do UDP as well, and even though it is CLI on linux, seems to be more powerful. I suppose you could write a script to have nmap poll an IP address/port combo, trigger some sort of flag if the response is not as expected, and add it as a cron job to run periodically.
>===== Original Message From "Anthony Valuikas" <[EMAIL PROTECTED]> ===== >Unless I don't understand something "ping" doesn't work at that level. > >You could do a netstat or even telnet to a port, maybe that will help you. >Aso you might want to just check the web page if the service is web based. > >Tv > > >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:WhatsUp_Forum-owner@;list.ipswitch.com]On Behalf Of Wayne Kittle >Sent: Wednesday, November 13, 2002 9:17 PM >To: [EMAIL PROTECTED] >Subject: [WhatsUp Forum] ports > > >Is there a way to ping a specific port on an IP address? > >Our firewall stopped allowing traffic on a specific port, this disabled >a service we offer to our members. > >Wayne D. Kittle >IT Manager >Research Federal Credit Union > >Please visit http://www.ipswitch.com/support/mailing-lists.html >to be removed from this list. > >An Archive of this list is available at: >http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > >Please visit http://www.ipswitch.com/support/mailing-lists.html >to be removed from this list. > >An Archive of this list is available at: >http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ Greg Schaffer Director of Network Services Information Technology Division Middle Tennessee State University Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/
