Re: DHCP server RAS problems



If you install Routing and Remote Access Server (RRAS) and use virtual
private networking (VPN), be careful when using DHCP to assign addresses to
VPN clients. According to the number of VPN clients you specify, the RRAS
server will remove that number of addresses from the DHCP server. For
example, if you have a DHCP pool of 200 addresses and configure 100 VPN
clients, the RRAS server immediately leases 100 DHCP addresses on behalf of
the VPN clients. Such action can result in using the entire DHCP pool
unexpectedly. The solution is to be aware of this and either augment your
DHCP scopes properly or carve out a piece of the DHCP address pool and have
the RRAS server itself hand those IPs out.

--
Todd J Heron, MCSE
Windows Server 2003/2000/NT; CCA
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This posting is provided "as is" with no warranties and confers no rights

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Relevant Pages

  • RE: VPN, RRAS & DHCP
    ... DHCP correctly bound to Internal NIC. ... ISA firewall client was not used by the VPN client computer ... Check the status of the local server. ... <only when RRAS is set to obtain IP address from DHCP server. ...
    (microsoft.public.windows.server.sbs)
  • Re: VPN Error 733, Event Log Error 20050 with SBS 2003 - revisited
    ... the RRAS servers network card is not configured as a DHCP ... this is the only DHCP server on the ... First please open Routing and Remote Access console. ...
    (microsoft.public.windows.server.sbs)
  • RE: VPN, RRAS & DHCP
    ... only when RRAS is set to obtain IP address from DHCP server. ... VPN connections subsequently fail again. ...
    (microsoft.public.windows.server.sbs)
  • Re: DHCP issues (solved!)
    ... Rerun the RRAS wizard and see if that fixes it. ... I had set up a new Firewall Policy on ISA called Block Forbidden ... have DHCP connectivity!! ... on the bottom it shows "Server Local Area Connection". ...
    (microsoft.public.windows.server.sbs)
  • Re: Adding a printer
    ... There are things I cannot answer in the NAT RRAS setup about DNS ... Since my last post I did enable the DHCP and I then rebooted the server. ... > and that you actually mean the Configure RRAS wizard in Win2k3.... ...
    (microsoft.public.windows.server.networking)

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