Windows 2000 RRAS IP Address allocation, Ports setting
Posted on 2006-04-03
I am obviously missing something with my understanding of RRAS. I inherited a network that has a VPN server which is Microsoft 2000 Server with the RRAS server installed.
General is set to RAS Server only.It works fine meaning users are able to access the network using the Microsoft VPN access over TCP/IP. They create a new VPN connection and access the network.
If you right click on the one server I have setup
General is set to RAS Server only.
Under IP I have enable IP routing and allow IP based Remote access and deman dial connections. It is set to DHCP.
Appletalk does say enabled .
Everything under PPP is checked as well.
Event Logging is enabled as well not that I get much info from the data but I can at least see when someone has hit the network and know how to troubleshoot from there.
If I right click on Ports I have
RAC PPP Connection using RACPort which I believe is the Dell device which is not being used at all (I am guessing here cause it says modem under type.)
WAN Miniport PPTP is used by RAS Type PPTP and number of port is 10 (I changed this from 20)
Wan Miniport L2TP is used by NONE type L2TP and number of ports is 5 (the default)
If I right click on Appleralk routing the enable routing option is available . I do not believe I have any remote MAC users.
My issue is that the server is allocating 20 IP addresses out of my DHCP Pool and I do not want it to allocate more than 10 ever. How to I stop this from occuring. Can I change it to static IPs, enter in an unused range of IPs different from my local network, such as 10.0.0.0/240 and have it stop using any addresses from my current DHCP pool which is already limited.
I am so confused as to why it was set up to use the same DHCP addresses that the local clients are using to access the outside world.
What can I do to get back my 20 DHCP addresses.
I also have my server binding a second IP address to itself that just seems so funky since it is in the same range as the rest of the DHCP pool. Therefore currently it has a fixed IP of 192.168.10.50 and a WAN <PPP/SLIP> Interface IP of 192.168.10.169 /32 with a DNS server of 127.0.0.1.
If I was able to simply reduce the total usage to 10 contiguous IPs I would be satisfied. At one point I believed that Ports meant the IP addresses it could grab and it does appear related. Meaning when I changed it from 20 to 10 and restarted the service it would only show that 10 IP addresses were allocated in DHCP. BUT now as new users log on it grabs additional IPs beyound that pool even though the Maximum users at one time is never more than 8.
So I am believing that because there must be more than 10 different users my addresses must have the lease maintained and instead of reusing an existing IP it is grabbing another one from the DHCP pool hence the mess I am getting.
Is that logical? I do not want to change my lease time.. If that is even a solution. What other options do I have and how much am I missing.
Sorry but I have not been very good at understanding the concepts being overwhelemed too often with so many mundane tasks. I hope someone with more experience with this can lead me down the right path.