Re: Problems with Internet / Netgear router on SBS 2003

From: Les Connor [SBS Community Member - SBS MVP] (les.connor_at_DEL.cfive.ca)
Date: 03/12/05 

Date: Fri, 11 Mar 2005 20:09:23 -0600

Hi Alan,

Your SBS network has a 'lan' side; your SBS should be the DHCP server for
that segment - and I believe that's the way you want it and that's the way
you have it.

The router also has a 'lan' side, and it's on the same addressing as your
SBS external nic. Therefore, it's still a private network, separate from the
internet, but also seperate from your SBS lan.

You can elect to turn on the DHPC server for your router; it only operates
on the router's lan side, and with two nics in your sbs, it won't bother
your SBS lan. It gives you the option of connecting to the network at a
point that is between your SBS and the Internet, and not on either network.
Even without DHCP turned on at the router, you can still connect there, you
just don't automatically get the IP configuration - you'd have to manually
configure the client. 

-- 
Les Connor [SBS Community Member - SBS MVP]
-----------------------------------------------------------
SBS Rocks !
"Alan Dods" <alandods@NOTTHISBITnetcomuk.co.uk> wrote in message 
news:rei331h5r2941q0ouvvp3p6u4oeeqk90jq@4ax.com...
> "Marina Roos [SBS-MVP]" <marina@roos.nodontwantspam.nl.com> wrote:
>
>>Hi Kevin,
>>
>>All noted, but Alan was specifically asking how to turn off DHCP on the 
>>SBS
>>if he would use the Router as DHCP, which of course is not needed and not
>>recommended.
>
> Kevin & Marina
>
> I'm afraid you'e lost me!  I am only aware of one DHCP setting in the
> Router Config, which is on the Lan IP Configuration screen:
>
> There is a screenshot at this website:
> http://www.farina1.com/DG834G/page_02.htm
>
> There is a checkbox there for "Use Router as DHCP server" .  I've
> unchecked that because I want SBS 2003 to do it.
>
> Kevin said - "I think he has the external router handing out DHCP for
> anyone that connects outside of his network."   I don't know if I do
> or not.  I haven't tried to set up remote access yet (more fun in
> store I suspect).   I did try to login to https://staticip/remote a
> couple of times but I got nothing and I think the router may not have
> been working by then.  Or maybe I had the forwarding set up wrong.
> I've configured it to respond to pings now so at least I can see if
> it's alive from a remote location.
>
> Anyway, is there another setting in the Router that I should look at
> to see how it is handling IP allocation on the WAN side?  I assumed I
> would (eventually) be able to get it to pass requests through to
> Remote Web Workplace and that SBS 2003 would handle IP allocation to
> remote PC's (not even sure if this needs to happen for access to RWW).
> I've ordered a couple of books to read.  Why did I assume I could just
> use all this stuff based on help files and prompts on screen?  Why do
> I never learn?
>
> This is from the manual:
> "By default, the router will function as a DHCP (Dynamic Host
> Configuration Protocol) server, allowing it to assign IP, DNS server,
> and default gateway addresses to all computers connected to the
> router's LAN. The assigned default gateway address is the LAN address
> of the router. IP addresses will be assigned to the attached PCs from
> a pool of addresses specified in this menu. Each pool address is
> tested before it is assigned to avoid duplicate addresses on the LAN.
> For most applications, the default DHCP and TCP/IP settings of the
> router are satisfactory. See "IP Configuration by DHCP" on page B-10
> for an explanation of DHCP and information about how to assign IP
> addresses for your network.
> Use Router as DHCP server
> If another device on your network will be the DHCP server, or if you
> will manually configure the network settings of all of your computers,
> clear the `Use router as DHCP server' check box. Otherwise, leave it
> selected.
> Specify the pool of IP addresses to be assigned by setting the
> Starting IP Address and Ending IP Address. These addresses should be
> part of the same IP address subnet as the router's LAN IP address.
> Using the default addressing scheme, you should define a range between
> 192.168.0.2 and 192.168.0.254, although you may want to save part of
> the range for devices with fixed addresses.
> The router will deliver the following parameters to any LAN device
> that requests DHCP:
> · An IP Address from the range you have defined
> · Subnet Mask
> · Gateway IP Address is the router's LAN IP address
> · Primary DNS Server, if you entered a Primary DNS address in the
> Basic Settings menu; otherwise, the router's LAN IP address
> · Secondary DNS Server, if you entered a Secondary DNS address in the
> Basic Settings menu
> Reserved IP addresses
> When you specify a reserved IP address for a computer on the LAN, that
> computer will always receive the same IP address each time it access
> the router's DHCP server. Reserved IP addresses should be assigned to
> servers that require permanent IP settings.
> To reserve an IP address:
> 1. Click the Add button.
> 2. In the IP Address box, type the IP address to assign to the
> computer or server.
> Choose an IP address from the router's LAN subnet, such as
> 192.168.0.x.
> 3. Type the MAC Address of the computer or server.
> Tip: If the computer is already present on your network, you can copy
> its MAC address from the Attached Devices menu and paste it here.
> 4. Click Apply to enter the reserved address into the table.
> Note: The reserved address will not be assigned until the next time
> the computer contacts the router's DHCP server. Reboot the computer or
> access its IP configuration and force a DHCP release and renew.
> To edit or delete a reserved address entry:
> 1. Click the button next to the reserved address you want to edit or
> delete.
> 2. Click Edit or Delete.
>
>
> Regards
> Alan
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