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here is the scenario, i have a windows 2003 server with 2 nics. <br />
I installed RRAS and IAS on this machine.<br />
Both machines have internal(but different) IP's on the nics 192.168.1.20 on nicA and 192.168.2.21 on nicB(this is the one configured as the external ip on the vpn server because i am doing natting with my firewall to this ip)<br />
I have configured the IAS to use active directory with its authentication and a the vpn(nic-B) as a radius client <br />
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my question is on my dhcp server which is a completely different server(its on my domain controller) i am seeing a bunch of IP addresses being taken up by the unique id &quot;RAS&quot;, the name is the name of the server for all the ip's. why is this happening?<br />
please advise.<br />
thank you
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here is the scenario, i have a windows 2003 server with 2 nics. 
I installed RRAS and IAS on this machine.
Both machines have internal(but different) IP's on the nics 192.168.1.20 on nicA and 192.168.2.21 on nicB(this is the one configured as the external ip on the vpn server because i am doing natting with my firewall to this ip)
I have configured the IAS to use active directory with its authentication and a the vpn(nic-B) as a radius client 

my question is on my dhcp server which is a completely different server(its on my domain controller) i am seeing a bunch of IP addresses being taken up by the unique id "RAS", the name is the name of the server for all the ip's. why is this happening?
please advise.
thank you

RRAS, IAS and Microsoft VPN server, why are RAS reservations in DHCP server?

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host). IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite.

Internet Protocol Security

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.

Windows Networking

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.