server address dhcp issue

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background: small business, 50 seats on lan, pdc , dc, linux machine running virtual sap server, backend database server, issue here involves server on network, win2k8r2 running terminal services.  dhcp shared between pdc (scope of 100 addresses either full or having 2 or 3 available addresses) , pfsense firewall handles rest of scope (class c.)  terminal services machine grabs several ip address dhcp within minutes, ten or twenty, nic hard coded static address.  see screen shot pfsense dhcp server, , note ip's highlighted reference mac address of single nic attached on terminal services machine:


so, how can stop behavior?  either prevent server requesting , erroneous addresses, or other workaround stop behavior?  root problem class c address space full.  needed expand existing address space or add more it, perhaps router running scope.  in mean time, use fix issue free 15 20 addresses right needed other clients , not being used terminal services machine requesting them.  everyone!







hiya, 

it router not support pptp(gre). - if running nat?

then in order unique identify each pptp user, assigned ip address. rather using gre header id.

http://tools.ietf.org/html/rfc2637





Windows Server  >  Remote Desktop Services (Terminal Services)



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