Re: SBS2k3 Server not responding to VPN Clients & Advice on SP2 Firewall configuration for VPN use

From: CRIS HANNA \(SBS-MVP\) (crishannanospam_at_computingpossibilities.net)
Date: 08/26/04 

Date: Thu, 26 Aug 2004 15:00:41 -0500

Whats issuing the remote IP address? SBS or the PIX server? 

-- 
Cris Hanna (SBS-MVP)
_____________________
Please only respond in the Newsgroup and not directly to me, so that
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"Stuart Mackie [MCP, MSP]" <newsgroups@--REMOVE_THIS-NO_SPAM--stu.uk.com>
wrote in message news:%23Z1YOe4iEHA.3712@TK2MSFTNGP15.phx.gbl...
> Hi.  We are using a Cisco PIX firewall and have remote workstations
> terminate on the PIX which is sitting in front out our internal network.
> The PIX VPN is working correctly and we are able to ping internal
> workstations and internal workstations can ping the external clients.
> Unfortunately the external clients are unable to contact the SBS2k3 server
> in any way, including pings.  Our normal internal network range is
10.0.0.x
> 255.255.255.0, and when VPN clients connect into the network they are
> allocated 10.0.2.x 255.255.255.0 as recommended by Cisco, with the PIX
> handling the routing between.  Since the external clients can contact all
> other internal systems apart form the Server, the only thing I can think
of
> is that the server by default will only respond to clients on the same
> internal subnet ?  The server internal address is 10.0.0.10 255.255.255.0
> and external 192.168.1.10 255.255.255.0.
>
> Can anyone suggest what would cause the SBS2k3 server to ignore the VPN
> clients even though internal XP Workstations which are on the same subnet
> can see the VPN clients ?
>
>
> Along similar lines we are unsure if we will have a problem with the SP2
> Firewall.  Unfortuantely we can't test this until we resolve why the VPN
> clients can't contact the server once connected. We are using the Cisco
VPN
> client to connect to the PIX firewall which is working fine.  When the
> remote user is connecting via VPN the firewall is operating in non-domain
> mode.  When the VPN connection is present we are conecerned although the
> system will be connected to the domain the firewall will continue to
operate
> in non-domain and block access to the server.
>
> Can anyone suggest whether this would be the case ?
>
> -- 
> Hth,
> Stuart Mackie [MCP, MSP]
> www.stu.uk.com
>
>

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