Can't see all IP addresses
I am not very astute at this and this may be dumb, but we have IP addresses 100 through 230. When I go to the dhcp and look at the addresses, it only shows 1-175 and I know computers are connected to the other addresses. We started with 1-175 and our outside tech person added the rest at a later date. I don't understand why I can't see the computers with those IP addresses. Any recommendations would be greatly appreciated.
January 21st, 2010 5:39pm
Check the different scopes in your DHCP serverIsaac Oben MCITP:EA, MCSE
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January 21st, 2010 6:30pm
If you are referring to viewing the active leases on the DHCP console, you are actually looking at the IPs that have been negotiated between the client and that particular DHCP server. If you do not see any leased IPs beyond .175, then you first want to validate what your scope range is, so click on the active scope, then click on "Address Pool". If the address pool is configured for a range of 1-175, then your clients are either configured with STATIC IP addresses, or they are receiving their IP leases from another DHCP server on the network. If you "Address Pool" is set to 1-230, and you still dont see the leases, then definately check the configuration on the workstations.If the workstation that is in the ip range above 175 is DHCP enabled, just run this command at the commmand prompt: IPCONFIG /ALL. If it is DHCP enabled, you will see the IP address of the DHCP server that issued the lease.
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January 21st, 2010 6:31pm
thanks so much. I will do what you said and that makes perfect sense as the IP addresses are static!
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January 27th, 2010 4:02pm
I am assuming now that you confirmed that the addresses are static, you may be wonderning why they dont appear in the DHCP leases. TCP/IP hosts configured with STATIC IP addresses will not "register" their addresses with any DHCP servers. That is why you dont see them in the list.
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January 28th, 2010 5:08am