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Windows Server 2003 - Way To Packet Filter ?

We have a Windows 2003 server that runs a service listening on TCP port 3100.  We want to lock this down so that only clients in a particular IP range can access them.

LAN is
We want 172.16.7.x machines to be able to connect but not any others.

Can we use IPSec policy under Windows 2003 to block all access to TCP port 3100 with the exception of

I don't want to VLAN the servers to achieve this or use firewall hardware.

Can this be done under Windows 2003 at a software level?

2 Solutions
Donald StewartNetwork AdministratorCommented:
I would run the security configuration wizard

 Security Configuration Wizard
ng99999Author Commented:
Thanks dsteqartjr,

We got around it by using the IPSec rules to create a global ALLOW and then a specific block for those ranges we wanted to block.  Not the best solution but worked a treat.

Thanks again

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