Re: DHCP issuing 2 or more to clients/servers

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance


Just to let you know what I did, I found the RRAS service started and once I
turned it off, it released the xtra IPs. It looks like the default is the
RRAS service is active even if it is unconfigured and pull extra IP from the
DHCP server. The XP/Vista Workstations are setup the same way. I would
consider this to be a bad desing flaw as on a network you would have to
either remember to only allow half of pcs per number of IPs allocated to the
subnet or disable the RASS service on every single PC/server on the subnet.

John

"Bill Grant" wrote:



"John Czahor" <JohnCzahor@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:B3CFB8E1-101C-4948-A541-5E2BDCAA4A91@xxxxxxxxxxxxxxxx
Also what are the implications of turning this off?

"Bill Grant" wrote:



"John Czahor" <JohnCzahor@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:E8BD8D16-B08B-4B61-AF7A-FB04D28521C7@xxxxxxxxxxxxxxxx
I am experiencing a issue where my DHCP server is giving out 2 IP
address
per
PC. One IP is the Active Lease and the second IP is shown as RAS, which
seems
to be given out anywhere from 15 seconds to ~3-4 minutes later. My
servers
has had 10 of these RAS IP given out to it and my clients will only
have 1
RAS IP (This does not include the Active IP that originally been given
to
the
PCs/Servers.) My problem is that it that eventually I run out of IP
address
and have to start manually deleting those RAS IPs. Another thing I have
noticed is when I look at the Address Leases on the DHCP server, I see
a
slightly different DNS name between the Active IP and the RAS IP.
Here is my configuration:
Class C IP range with 255 IP address.
Domain naming: PC.Sub-Domain.Domain.Com.
The 2 names in DHCP are:
Active IP given to: PC.Sub-Domain.Domain.Com.
RAS IP given to: PC. Domain.Com.
Any ideas on what is causing this?

Servers will lease 10 or more IPs from DHCP if they are configured as
remote access servers and do not have a static pool of addresses set up.
If
they are workstations, they have probably been configured to allow
incoming
connections.





I can't think of any reason why this would happen if RRAS is not
configured as a remote access server.

By default, RRAS is not configured at all.


.

Relevant Pages

  • Re: [Q] DNS(Name Server) doesnt appear from external network
    ... Tab of Property for DNS server. ... Command Prompt and registered IP configuration through ... your problem is propably because of multiple IPs. ...
    (microsoft.public.windows.server.dns)
  • Re: [Q] DNS(Name Server) doesnt appear from external network
    ... Tab of Property for DNS server. ... Command Prompt and registered IP configuration through ... your problem is propably because of multiple IPs. ...
    (microsoft.public.windows.server.dns)
  • Re: DNS Server Dos and Do Nots
    ... will refer to them as Server A and Server B. ... Is this configuration flawed? ... It is unless both DNS servers being "NS1.DOMAIN.COM" is a typo. ... allowed to both IPs on the Secondary. ...
    (microsoft.public.windows.server.dns)
  • RE: ICIEW, RRAS & POP3 Connector Problems
    ... There does seem to be an issue with the RRAS service. ... Ethernet adapter Server Local Area Connection: ... three companies onto the SBS Exchange/SMTP mail server. ... The SBS VPN in the CEICW fails every time I run it. ...
    (microsoft.public.windows.server.sbs)
  • Re: DNS setup recomendations using my isp as the secondary server.
    ... a single box for hosting multiple web servers on the same box, ... The reason is that, most hackers try flooding requests on your server, so ... Having multiple IPs on the same box, will make their task easiers, since ... >> you set up the port forwarding in that third party router. ...
    (microsoft.public.windows.server.dns)