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DynDNS configuration for VPN access

Posted on 2007-11-29
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Last Modified: 2013-12-14
Hi,

Our ADSL router was inadvertently reset removing all configurations including DynDNS. The server has two newtwork cards, one range is connected to the internal network (192.168.....) and the other is connected to the ADSL router (10.0......). On the router I have enable dyndns and set up all that I believe necessary. I have included the inbound services and set the LAN server IP address to point to the 10.0...... server address for all these services. When I attempt to connect to the networ remotrely via VPN, it connects with the VPN but then fails to verif username and password. I know the username and password is correct. Any advice? I'm in dire straits here. This was working fine until the router was reset and no other changes have been made to the network or server like ISA.
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Question by:B1SA
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Expert Comment

by:from_exp
ID: 20375440
Hi there!
Please give more detailed information
model of adsl router, vpn client you are using.
ip addresses (private addresses you can write without hiding them)
if your wan address of adsl router is private one (10.0.0.0/8) then you can't dyndns it, i think.
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Author Comment

by:B1SA
ID: 20449621
Hi exp,
Apologies for not responding, but I have been away on business. I have managed to get the vpn working on this, in fact, all I did was restart the adsl router again and this solved the problem?????

I do however still have a problem with OWA (Outlook Web Access). Previously we were able to access OWA by typing in the dyndns hostname, https://b1sa1.dyndns.org/exchange and then logon to view emails. This does not work anymore. The problem is I really don't have much time and unfortunately I have no more budget for this year to have this sorted out by a third party expert. I'm not sure if you can still assist, but here are the details you requested, anything just give me a shout.

Netgear DG834
ADSL router LAN ip address = 10.0.0.1
Server1 Network adapter1 ip address = 10.0.0.2
Server1 Network adapter2 ip address = 192.168.1.2

Is there perhaps another inbound service that I should include?

Inbound Services  
  #  Enable Service Name Action LAN Server IP address WAN Users Log 
 1  VPN-PPTP ALLOW always 10.0.0.2 Any Always 
 2  HTTPS ALLOW always 10.0.0.2 Any Always 
 3  HTTP ALLOW always 10.0.0.2 Any Always 
  Default Yes Any BLOCK always Any Any Never 
 

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Expert Comment

by:from_exp
ID: 20451722
ok, lets try to solve this problem out.
what is ip of owa server (or exchange server if they are the same)
what exacly is not working? what error messages you get, when trying to access owa?
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Author Comment

by:B1SA
ID: 20455709
Hi exp,

Thanks for getting back to me.
The OWA and Exchange server are the same. We only have one server with multiple network cards.

ADSL Router (LAN 10.0.0.1) ===> One server with OWA/Exchange having 2 NIC (LAN 10.0.0.2 and 192.168.1.2) ===> Internal network (Range of 192.168.1.3 to 192.168.1.255). All internal traffic is routed through this server which has ISA running on it as well. The server OS is SBS 2003.

All works fine internally as well as VPN, but can't access the OWA from external. I can access the OWA from internal by typing in the name of the server https://b1sa-server/exchange, so it does exist and is working.

The IE error message when trying to access https://b1sa1.dyndns.org/exchange is as follows:
Error Code: 403 Forbidden. The server denied the specified Uniform Resource Locator (URL). Contact the server administrator. (12202)

Nothing else has been changed, only the settings on the router were removed as mentioned before.

I trust this helps
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Accepted Solution

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from_exp earned 2000 total points
ID: 20455806
as i can see from the message you have provided, your problem is not vpn (it is fine and allow connection to owa) but permissions for IIS(your IIS forbids access to OWA site from outside of your network). unfortunately, i cann't  help you with IIS (not an exp in that area).
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Author Comment

by:B1SA
ID: 20455918
Thanks for the help exp. Atleast you've pointed me in the right direction. I will check the IIS server.
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Expert Comment

by:from_exp
ID: 22167851
hi, would you like to finish this Q?
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