Re: DHCP issue

From: Bill Grant (not.available_at_online)
Date: 06/08/04 

Date: Wed, 9 Jun 2004 09:21:47 +1000

     I don't use DHCP for the remote clients. I prefer to use a static pool
of addresses. If you use the DHCP method, the clients do not in fact receive
their IP address directly from DHCP. The RRAS server leases a batch of
addresses from DHCP, uses one for its internal interface and issues
addresses from this pool to remote clients as required.

    The default gate way of the remote client is the received IP address (ie
the IP address which it receives from the RRAS server at connection time.
What this really means that all non-local traffic goes over the
point-to-point link to the RRAS server.

    Name resolution should work if the client receives the correct DNS
address at connection time. An nslookup from a remote client should work
just like one from a LAN client. They should be looking at the same DNS
server.

    Getting to the Internet from a remote client can be tricky. Is this RRAS
server also doing NAT for the LAN clients? If it is, you will need to make
the change described in KB 310888 .

"Gavin" <gavin_mcgoldrick@msn.com> wrote in message
news:BCEBE09D.2B3%gavin_mcgoldrick@msn.com...
> Hi,
>
> Firstly, many thanks to all who have contributed to this group so far as
> it's been a brilliant source of information.
>
> I have managed to get RRAS working for l2tp/ipsec using certificates.
>
> I had to setup a static pool of addresses and specified the dhcp server in
> dhcp relay.
>
> When the clients connect and are authenticated they get the IP address
from
> the static pool but no DHCP setting. So the credentials for name
resolution
> have to be inserted into the hosts file.
>
> When I have it set to DHCP, the Internal RRAS interface has a 169.x.x.x
> address. The VPN client can't get an address
>
> The Policy specifies client requests IP address.
>
> I installed a dhcp server on the machine but this hasn't made any
> difference.
>
> Question: What do I have to do to get the RRAS server passing dhcp data
> from my internal dhcp servers to the clients?
>
> Does the client use the default gateway from the INTERNAL interface when
> connected as Internet access doesn't work. Neither does name resolution
when
> I nslookup to the dns servers which I can ping.
>
> Thanks in advance.
>
> Gavin
>

Relevant Pages

  • RE: VPN, RRAS & DHCP
    ... Open DHCP console. ... Check the status of the local server. ... <VPN connections subsequently fail again. ... <I say fail but in practice both the server and clients are assigned IP ...
    (microsoft.public.windows.server.sbs)
  • RE: DHCP: not reached by clients
    ... This newsgroup only focuses on SBS technical issues. ... | Thread-Topic: DHCP: not reached by clients ... | thereafter re-enabling dhcp server it worked perfectly. ...
    (microsoft.public.windows.server.sbs)
  • Re: How to setup effective school network
    ... > I have a very nice quality server ... ... > Network card all hubs and switches to my server and serve dhcp. ... the listing it appears you are running samba/windows clients. ... Do SSO for just a few hosts initially to get some experience. ...
    (comp.os.linux.networking)
  • Re: Taking Domain Controller Offline
    ... Depends of the DHCP clients lease, if you think that the amount of time that ... additional DHCP server, of course if you've one in place you should use it ... sure that the clients are able to use the additional DNS server. ... "Jorge Silva" wrote: ...
    (microsoft.public.windows.server.active_directory)
  • Re: Autoenrollment errors in Event Viewer...
    ... I agree with you on the DHCP part for the clients. ... Ed. server acting as the DC, DNS, ... servers and login directly into the local domain. ...
    (microsoft.public.windows.server.sbs)
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