Re: Using SBS 2003 as DHCP server and a segragate network

In your previous post, you stated that "It is tele cord into Draytek
router/modem -> NIC1 SBS -> NIC 2 goes to SMC Switch (not router) ->
Clients hooked up onto switch."

Now you are saying "ISP tele cord to Draytek router/modem ---> SMC Router
LAN port to NIC1 of SBS 2003 ---> SBS NIC2 goes to switch with clients on
it."

Which one do you REALLY have?

Also, you referred to the Draytek as a router/modem. I took that to mean you
were not sure what it is. I should have just asked you.

Is the Draytek a router?

OR

Is the Draytek a "DSL modem" (which is just a bridge)?

OR

Is the Draytek a DSL "modem" (bridge) with a built-in router running NAT on
some hub or switch ports?



IF the Draytek is actually a router with NAT on it, and is not just a plain
bridge, then you do not **need** back-to-back routers, but the Draytek is
probably a low-end router with basic NAT as its "firewall." You may **want**
another router in line with an SPI firewall just for security. Most
ISP-supplied routers have crappy firewalls or only use NAT.

If the Draytek is a router with NAT, then you should have this setup: ISP
tele cord to Draytek router ---> NIC1 of SBS 2003 ---> SBS 2003 NIC2 goes to
switch with clients on it.

If you want more security, use: ISP tele cord to Draytek router --->
**second router with a good firewall goes here and has DHCP on for your
problems systems to use it** > NIC1 of SBS 2003 ---> SBS 2003 NIC2 goes to
switch with clients on it.




For your DHCP question, picture this:

You can have a dynamic IP address or a static IP for SBS NIC1. Although you
should give it a static IP on NIC1, you **could** hook NIC1 to a DSL bridge
or cable modem and have it get its IP from the ISP's DHCP server.

If you have a router running DHCP on the WAN side of the SBS, i.e., on the
Internet side (SBS NIC1), then the router's DHCP server is only going to
give an address to anything on its LAN ports. Your SBS 2003 NIC1 would be on
one of those ports, but you have already set it with a static IP. Since it
is on the WAN side of the SBS, its DHCP will not know about the SBS DHCP on
the LAN side of the SBS. No conflict!

If you stuffed a router with DHCP on the LAN side of the SBS, it would
conflict with the SBS DHCP server.

Post your output from "ipconfig /all" on the SBS.

Gregg Hill



<rkfrtsch@xxxxxxxxx> wrote in message
news:1140810452.667039.322940@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Bear with me because I'm a tad bit confused. If you're done with me
that's alright because you two have tried to help a lot.

To reiterate, I currently have:

ISP tele cord to Draytek router/modem --->
SMC Router LAN port to NIC1 of SBS 2003 ---> SBS NIC2 goes to switch
with
clients on it.

And your proposing I do this?:

ISP tele cord to Draytek router/modem ---> SMC Router WAN port--->
SMC Router LAN port to NIC1 of SBS 2003 ---> SBS NIC2 goes to switch
with
clients on it.

Why have two back to back routers? I don't see how turning on the
router as a DHCP won't conflict with the SBS being the DHCP server.
Maybe I need a picture.... rkfrtsch@xxxxxxxxx



.

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