How to allow remote access on sbs when external router is used?

[calucho14]

If somebody can give me an idea please,,, I have windows sbs running with two network cards and an external router (linksys rv4000). I use a static (public) ip address. Internet access is working fine, but...
Before the use of external router the server could by accesed by remote access, but now with the router running it holds the public ip, and the server can't be reached, what to do?

 

[dotobi]

You just need to forward the relevant traffic from the router to your server's INTERNET NIC ip address server...

Log in to the router's admin page & you should see a 'firewall rules' or 'port forwarding' or similar area.

For an example setting, let's say you want to be able to use remote desktop to connect to the server.

On the router, forward traffic for the Remote Desktop port (TCP 3389) to your server's IP address.

You may need to also open this port up on the server, but probably not as you said uses could get access before. However, if you do need to, do it in:
Administrative Tools >
Routing and Remote Access >
ServerName >
IP Routing > NAT/Basic Firewall >
Right-Click on your INTERNET LAN >
Properties >
Services & Ports Tab >
Add... >
Enter Incoming & Outgoing Port (both 3389) and IP address of the server as "127.0.0.1"

That should then allow you to remote desktop to your server.

The good thing about the "Incoming & Outgoing Port" part is that if you wanted to use a different port (say 12345) so that you can remote desktop to "<i>your_external_ip_address:12345</i>" then you forward port 12345 on your router to your server, then on the SBS enter 12345 as the incoming port and 3389 as the outgoing port. This is good if you want to give multiple users Remote Desktop access to their individual PCs (ie User one uses :3390, user two uses :3391, etc…). Just forward the relevant traffic to their PC’s internal IP address (provided it’s static).

A list of port numbers can be found here:

http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers

Hope this help

 

[dotobi]

THE FIRST LINE SHOULD READ:
"You just need to forward the relevant traffic from the router to your server's INTERNET NIC ip address..."

cheeRs

 

[TechSoEasyMVP]

With SBS, there's no need to configure different ports for users to access their desktops remotely. This is a feature of SBS's Remote Web Workplace. Info on that is at

http://sbsurl.com/rww

If your router has UPnP ability and you enable that feature, running the Configure Email and Internet Connection Wizard (CEICW -- which is linked as Connect to the Internet in the Server Management Console > To-Do List) will automatically open up the correct ports.

A visual how-to is here:

http://sbsurl.com/ceicw

and a full networking overview for SBS is at

http://sbsurl.com/msicw

If you need to manually redirect the ports on your router, the following is a list of the main ports used by SBS:

25 - SMTP
443 - HTTPS (for RWW and OWA)
444 - SharePoint
1723 - PPTP VPN
3389 - RDP for remote administration
4125 - Remote Web Workplace


Jeffrey B. Kane
TechSoEasy

http://www.techsoeasy.com