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rpierson7870
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Setting up a SBS Server on new ISP provider

Just got a new T1 with VOIP. Vendor gave me Cisco 2430 Router but will not let me access the Router, because it is "thier equipment".. Even though I am paying them over 7g's a year...

Anyway, here is my Setup:

Internet
|
Router -- Public Address 1 (ISP settings) x.x.x.225
|
Switch
|
Wireless G   -- Public Address 2 (Set up as Static IP) x.x.x.226
|            |                |                             |
SBS    File Server   Apps&DBS Server    Unused Server

I have the Wireless G only for Laptop Wireless connections and acting as a Switch.

Currently, I have a Dedicated Server with a hosting company.

Here is what I want:

(1) Have MS Exchange on the SBS be my email server for both my domains.
(2) Host both my businesses website on the SBS.
(3)  Allow VPN through the SBS.

Here are my questions:

(1) Should I replace my Wireless G Router with just an WAP switch?
(2) Since i don't have access to the Cisco router and cant do any routing, do I have to make the SBS a Public Address to get what I want? I have 16 at my disposal.
(3) What does it mean when the ISP guys tell sme my LAN Block is x.x.x 224/227 and then tell me that the useable range is x.x.x.226-254? What is the 224 and 225 used for?
(4) What does it mean when they also tell me that my WAN block is x.x.x.140/30?
(5) I hate not knowing...

Thanks in advance....


NetworkingHardware Firewalls

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tim1731

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
tim1731

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tim1731

Hi,

Thanks for the points

rpierson7870

ASKER
Ok.. I see I have 30 hosts for my connection.

This may sound like a dume question, but each device -- router, server -- is considered a host?

Thanks again...
tim1731

A host is something that needs one of those ext facing IPs, so if you are using NAT and your network address is 192.168.1.* then everything on the network has an int IP and is routed through the firewall at 192.168.1.1 but the firewall may have part of the range say 5 IPs (so 5 nodes) and you have it setup

1.= outside address of firewall (if opening another office use for VPN Tunnel)
2.mail server IP (open port 25 for mail and forward to device)
3.VPN if not using the one builtin to firewall (IE ISA SSL VPN,etc)
4.Web server (open port 80 and port in DMZ)
5.another (webmail port 443)
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