Re: 2 NIC SBS2003R2 LAN/WAN Firewall Router Connection Failure

Thank you.

I will try to use the right terms in future.

Oh, by the way, I did use the crashdump debugger that you and Susam
suggested on my former problem and localised the problem to sis.sys, which
appears to be the recurring source of the crashes since then.

Thanks for the advice with the microsoft crash analysis tool.

"SuperGumby [SBS MVP]" wrote:

NO, they are subnet masks, not subnets.

192.168.0.x mask 255.255.255.0 is a different subnet from 192.168.1.x mask
255.255.255.0

The masks are the same but the subnets are different. (that's what masking
is all about)

both 192.165.1.30 subnet 255.255.0.0 and 192.165.1.20 subnet 255.255.255.0
are _sortta_ on the same subnet. It's an invalid configuration.

"Marcus" <Marcus@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:EA51A443-C393-4A5D-9F3B-78EE3D508E04@xxxxxxxxxxxxxxxx
HI,

That's not my configuration. If you look at the diagram, both the WAN NIC
and the LAN NIC are on the same subnet.

My WAN NIC and LAN NIC are on separate subnets; the former on 255.255.0.0
the latter on 255.255.255.0.

I think it's because of the different subnets that the clients and server
cannot communicate with the router.

That's why I asked about static routes, the router table and so on.

Oh, and I can't put the WAN NIC on the same subnet; I've tried and it
won't
work.

Happy to consider any other ideas...

"Merv Porter [SBS-MVP]" wrote:

For network setup, take a look at the following diagrams:

Two Nics, a static IP address, ISA, router
(works for SBS with or without ISA)
http://www.smallbizserver.net/tabid/266/articleType/ArticleView/articleId/76/Two-Nics-a-static-IP-address-ISA-router.aspx

Then re-run CEICW which will set up the SBS server to handle DHCP for
your
LAN.

When configured correctly, you will essentially have 3 networks,
separated
for security:

The Internet
Firewall-Router (public WAN side), Static Public IP from your ISP

Firewall-Router (private LAN side), Static IP 192.168.1.1
SBS External NIC, Static IP 192.168.1.2

SBS Internal NIC, Static IP 192.168.16.2
Workstations, Dynamic IPs 192.168.16.x

--
Merv Porter [SBS-MVP]
============================

"Marcus" <Marcus@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:14DE3A58-36A1-44F6-8F44-B79F64E70118@xxxxxxxxxxxxxxxx
I have installed a 2nd NIC in my SBS2003R2 Server.

I have configured the new NIC (WAN) with IP 192.165.1.30 subnet
255.255.0.0.
I left the old NIC (LAN) with IP 192.165.1.20 subnet 255.255.255.0.

I have a firewall router between my WAN NIC and the ISP. This has an
internet facing static IP of W.X.Y.Z. It has an intranet facing static
IP
of
192.165.1.1 subnet 255.255.0.0 (previously 255.255.255.0 before the new
NIC
was installed).

I have set the DHCP scope on the Server to 192.165.1.1 to 192.165.1.254
(I
guess on subnet 255.255.255.0). The exclusion is set from 192.165.1.1
to
192.165.1.10.

I have not defined a second scope on the 255.255.0.0 subnet.

My clients on the LAN can successfully reach the internet.
My server can successfully reach both clients and the internet.

Neither my server nor my clients can reach my firewall router. Before I
installed the 2nd NIC this worked fine. (i.e. before I reset it with a
static
IP on subnet 255.255.0.0 rather than the original subnet of
255.255.255.0).

Q1. Do I have to define another DHCP scope for the new WAN subnet and,
if
so, how?
Q2. Do I have to set up a static route from my LAN (clients and server)
to
the router and, if so, how?
Q3. Do I have to do anything to my inbuilt SBS Firewall settings (which
are
currently the default ones - I've not messed around with these)?

I need to reach my router in order to change some of the VPN tunnelling
permissions, you see.

Finally, if I plug a LAN laptop directly into the router it can't reach
it
either. But the router is working fine...







.

Relevant Pages

  • Re: 2 NIC SBS2003R2 LAN/WAN Firewall Router Connection Failure
    ... I changed the SBS external IP settings as you suggest. ... Clients and the SBS Server can reach the router. ... may be there are some rule deny the access from some IP addresses or subnet. ... |> Two Nics, a static IP address, ISA, router ...
    (microsoft.public.windows.server.sbs)
  • Re: 2 NIC SBS2003R2 LAN/WAN Firewall Router Connection Failure
    ... Please contact your router vendor to check the settings in the router, ... may be there are some rule deny the access from some IP addresses or subnet. ... How to configure Internet access in Windows Small Business Server 2003 ... |> Two Nics, a static IP address, ISA, router ...
    (microsoft.public.windows.server.sbs)
  • Re: 2 NIC SBS2003R2 LAN/WAN Firewall Router Connection Failure
    ... router from internal client or SBS. ... Please contact your router vendor to check the settings in the router, ... may be there are some rule deny the access from some IP addresses or subnet. ... |> Two Nics, a static IP address, ISA, router ...
    (microsoft.public.windows.server.sbs)
  • Re: 2 NIC SBS2003R2 LAN/WAN Firewall Router Connection Failure
    ... My WAN NIC and LAN NIC are on separate subnets; ... That's why I asked about static routes, the router table and so on. ... and I can't put the WAN NIC on the same subnet; ... Two Nics, a static IP address, ISA, router ...
    (microsoft.public.windows.server.sbs)
  • Re: Network Hardware
    ... LAN With Two Routers" and now wonder whether or not to send this message as ... I was also hoping to use the DLink Router ... have to go through the router to get to the internet on the other subnet. ...
    (microsoft.public.windowsxp.network_web)