How to avoid a server from using an unauthorized IP ?

Kuteninja — Wed, 28 Apr 2010 18:32:13 +0000

I don’t know for sure how to ask for it, so I’ll explain it to you first:[Br style=”padding: 0px; margin: 0px;” />[Br style=”padding: 0px; margin: 0px;” />- I currently have a Linksys SRW224G4 switch, in which I have connected 10 servers. [Br style=”padding: 0px; margin: 0px;” />- From those, 9 servers are ours, and the other one is from one of our clients.[Br style=”padding: 0px; margin: 0px;” />- We have 27 IP addresses available; and only 12 currently being used (plus, the gateway), a total of 30.[Br style=”padding: 0px; margin: 0px;” />[Br style=”padding: 0px; margin: 0px;” />What I need to do is that my client’s server, CANNOT use an IP address, different from the one I’ve assigned to him.[Br style=”padding: 0px; margin: 0px;” />[Br style=”padding: 0px; margin: 0px;” />One of my friends, told me that this could be done by assigning a VLAN to the server’s port, and use netmasks to block the traffic; but my Switch doesn’t let me do anything to the VLAN’s other than adding or removing ports to it, it has no networking setup and I don’t have a console access other than the extremely basic telnet/ssh menu and the WebView. Also, I have no access to the Gateway (it’s controlled by my provider), and I haven’t installed a Router yet.[Br style=”padding: 0px; margin: 0px;” />[Br style=”padding: 0px; margin: 0px;” />Is it possible to do this with just the Switch? (eg. with ACL’s or something like that)[Br style=”padding: 0px; margin: 0px;” />Or I’ll need to get a Cisco Router to do the VLAN’s IP address control?

IT Answers » SRW224G4

How to avoid a server from using an unauthorized IP ?