RAS is wasting my DHCP IP address

[Niraj]

Hi,

Every time I see my DHCP server IP table ...
always I find about 10-20 of IP address is assigned to
RAS ( phone icon).

Is there a way so that DHCP can dney IP address request
to any RAS related services ... so that I can save my
valuable IP ???

Regards
-Niraj

 

[Steven Umbach]

Reduce the number of ports available in the rras Management Console for pptp and
l2tp keeping in mind that you want to leave enough for user access. Select
ports/properties - configure for each type of port shown. --- Steve

 

[Niraj]

Hi,

Thanks for the reply.

I don't want to give any IP to any of the RAS client from
this DHCP server.

How do I completely stop giving IP to any RAS client from
this DHCP server ?

Regards
-Niraj

-----Original Message-----
Reduce the number of ports available in the rras

Management Console for pptp and

 

[Steven Umbach]

Set the ports for l2tp and pptp to zero. I think one of them you can only reduce
to one. Then delete the leases in your dhcp properties. Restart rras and see how
many leases it takes after reducing the ports. --- Steve

 

[AMAN]

HI
WHY DO NOT CONFIGURE YOUR RAS SERVER TO GIVE THE IP FROM A
RANGE OF IP.

 

[Niraj]

Hi,

I don't run any RRAS server .... Problem goes like this ..

I have a windows 2000 DHCP server ...

Some of the users will configure a dialup networking
client on there workstation ( I don't know why ??? ) ...
Once they have this RAS service running .... they get one
IP from the DHCP server ....

If I see in DHCP manager ... there will be a telephone
icon and a IP will be assigned to it . I wanted to stop
this because .. It consumes all my IP address from my
DHCP pool ...

Please HELP ????

Regards
-Niraj

 

[Lanwench [MVP - Exchange]]

Hi,

I don't run any RRAS server .... Problem goes like this ..

I have a windows 2000 DHCP server ...

Some of the users will configure a dialup networking
client on there workstation ( I don't know why ??? ) ...

Once they have this RAS service running .... they get one
IP from the DHCP server ....

Why would they be dialing up to your server while already connected to it on
your LAN? This sounds like a social engineering issue to me.

 

[Steven L Umbach]

If you don't want to run rras, then open the rras Management Console and disable it.
If you are using rras for another reason such as NAT/routing then go into the server
properties in rras Management Console and uncheck "remote access server". --- Steve

 

[andy smart]

Hi,

Every time I see my DHCP server IP table ...
always I find about 10-20 of IP address is assigned to
RAS ( phone icon).

Is there a way so that DHCP can dney IP address request
to any RAS related services ... so that I can save my
valuable IP ???

Regards
-Niraj

I have a similar problem. Machine X is in an office on-site, connected
to the system by ethernet. In DHCP it has an ip address in its own
right, and a second with the telephone icon next to it. Our network has
no connection via the phone line directly - we do have a VPN system
using dedicated hardware, but you connect to it via the Internet and
need id and password to connect. How can DHCP be assigning leases to a
machine on the network as though it dialed in?

 

[Steven Umbach]

Vpn users need IP addresses also for use on the network. When they vpn in, dhcp
considers that a separate connection from a direct lan connection. --- Steve

 

[andy smart]

Vpn users need IP addresses also for use on the network. When they vpn in, dhcp
considers that a separate connection from a direct lan connection. --- Steve

But why would the machine have a dial-in IP when it is not dialing in?
As I understood it the machine makes a DHCP call when it connects to the
network - it connects via the LAN and does not dial in to the system. If
it was being taken off-site I could see how this could happen, but not
if its staying in the office plugged into the LAN. Sorry to labour this
but I suspect it shows a lack of understanding of DHCP on my part and
I'd like to understand where I'm going wrong