New Configuration

RouterOS Beginner Basics
1

Hi

I have just purchased my 1st Routerboard (750G)
I would like to know where to start. My requirements are as follow.
I have 4 connections and would like to set them up from ports 1-4 in this order.

  1. Local LAN (Hotel Staff)
  2. ADSL Internet (Hotel Staff)
  3. Internet via Wireless ISP (Hotel Staff)
  4. Internet for hotel guests

1: Local LAN – this is for all hotel staff working on laptops and PC’s and has a certain IP range

2: ADSL Internet – this connection should be used for a certain web based application used by hotel staff on a daily basis. The router should know that when a request on port 80 comes through to a specified IP, it should use this ADSL connection

3: Internet via Wireless ISP – this connection must be used by all applications, email etc. for any user on the network. (Guest or staff)

4: Internet for Hotel Guests – currently all guests logs on to a wireless signal throughout the hotel. That specific router does the dhcp on a different range. The guests must get their internet via (3). Also, when a client connects on the wireless and needs to send email, it must somehow be forwarded through the exchange server to send it out via the Wireless ISP. The reason is that a lot of people don’t use a secure smtp server to send mail, so I need a way for the email to be sent regardless of the smtp setting on the guest’s pc/laptop – it would be great if the routerOS has something like this to assist.

A fail over also needs to be created that if either connection 1 or 2 falls over, traffic is then routed via the active connection . and as soon as the connection is restored, the routerboard must automatically restore the settings so that it defaults back to the basic rules.
Hope someone can help.

2

1.) Each interface on an RB can be it’s own separate routed interface. By default I believe the 750’s come with the switch chip enabled. Disable that, and then set up what services you want on each of the interfaces (DHCP Server, DHCP Client, Hotspot, IP addresses, etc.)
2.) look up and read up on PCC if you want to do load balancing. If you are looking more for just a failover situation, look up and read up on policy based routing.
3.) Hotspot will generate a rule that will forward all port 25 traffic to a specified SMTP server, it’s up to you to configure your server properly so that it only accepts connections from know IP addresses, will deal with spam, accept incoming connections with security or no security, etc. If you don’t want to use the hotspot, just make a similar NAT rule.
4.) Set up the appropriate firewall filters to protect the router and prevent people on the guest side from being able to access anything on the hotel side and vice versa.

Edit: Depending on how good of a job you want to do, maybe think about getting a consultant that will give you pointers and help you design something out. It will be relatively easy to get something up and running in short order, but if you’re not willing to spend the money on the network infrastructure to do it right, you will likely generate a lot of problems and have an insecure system for both the guests and hotel users.