By some sort of mistake navigating Outlook Express last night, this response was sent privately although it was supposed to be destined for the list. Let's try again.
Mike, I've glad you've explained what "IPS" means. Precision helps to get faster answers. Strangely enough the answer was under your nose all along, namely PING. If your "internal network" corresponds to a Local Area Network (LAN), let us assume Ethernet - although I guess there's still an outside chance it is Token Ring or even Fiber Distributed Data Interface (FDDI) - then, theoretically, you need merely to enter the PING command with the subnet value followed by "all ones" for the host portion. Taking your example, I assume the subnet address for your LAN is 192.168.10.0 and the subnet mask is 255.255.255.0, then the command PING 192.168.10.255 should ensure that the IP node behind each of the 254 possible interfaces on the LAN will return a response. That is because the subnet portion of all the IP addresses on the LAN is the first 24 bits and the host portion is the last 8 bits as defined by the subnet mask 255.255.255.0. It's not guaranteed that your subnet mask is 255.255.255.0 but the way you wrote your post, "ping 192.160.10.nn", indicates that it might be. Of course, you'll get responses only from the IP nodes that happen to be powered on at the time you enter the command. I said theoretically above since it is possible that not all the nodes attached to the LAN have been properly configured with the correct subnet mask and thus may not respond to the PING. It so happens that I was involved in some tests long ago when the LAN where I worked needed to move the subnet mask 2 bits to the left, as it were, and we discovered that - as seemed to be indicated by IP theory - it was not necessary to migrate all the user IP nodes, typically PCs, at once. If all this is gobbledygook, you are going to have to become your installation's network person very, very quickly - or your management is going to have to hire a consultant ... If your network is more complicated than a simple LAN as described above, you'll have routers. You shouldn't be trying to navigate the IP river without a pilot and so you should get that consultant on board right now even if you plan immediately to take a crash course in getting your pilot's licence. Before signing off, something else came to mind. Again if your "internal network" corresponds to a single LAN, and, this time, the node from which you check the rest of your LAN has been talking to all the other IP nodes in the recent past, you will see an entry for each of these nodes using the command which displays the ARP cache, NETSTAT ARP ALL. (See 3.3.2.4 Netstat ARp/-R report in z/OS V1R7.0 Communications Server IP System Administrator's Commands. Chris Mason ----- Original Message ----- From: "Mike Liberatore" <[EMAIL PROTECTED]> Newsgroups: bit.listserv.ibm-main To: <[email protected]> Sent: Saturday, 15 July, 2006 7:54 PM Subject: Re: TCPIP - Ping tool > I'm not a networking persorn but I woul like to know if there is anyway > for me to be able to tell how many systems/servers or whatever have an > IP address in my internal network. Our Network person left and I would > like to be able to document what IP addresses are being used/defined in > our Network. For example, My PC/server has an address of 192.168.10.xx > can I somehow use a tool to ping 192.160.10.nn to see who answers?? > > Bruno Sugliani wrote: > > >On Sat, 15 Jul 2006 11:11:13 -0400, Mike Liberatore <[EMAIL PROTECTED]> > >wrote: > > > > > > > >>is there a tool similar to PING that can be used to identify all the IPS > >>in yor your NETWORK? > >> > >> > >> > > > >Not sure i understand IPS well ( IPS means so many things for us foreigners > >But it looks to me that you want a D TCPIP,,NETSTAT ( with the proper options) > > > >Bruno > >Bruno(dot)sugliani(at)groupemornay(dot)asso(dot)fr ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
