My office having Site to site VPN to Head office, my problem is, i can't access my Microsoft outlook from home thru Cisco VPN client. but no problem for accessing the internal network resource......our Exchange server is placed in the head office
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Re: Exchange server access problem.
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I have no idea what firewall you are using. Your posting is lacking crucial detail and that makes this almost impossible to answer you. However, I use a Cisco 5520 in a Data Center and i Host my own Exchange server. This is what you have to do to allow inbound and outbound SMTP traffic in that type of environment.
name (Internal IP here) Exchange description Internal mail server
access-list Inside_access_in remark Allow internal Exchange Server to send SMTP email outbound.
access-list Inside_access_in extended permit tcp host (Internal IP Here) any eq smtp
access-list outside_access_in remark Allow external entities to send SMTP email to Exchange Server
access-list outside_access_in extended permit tcp any host (Public IP Here) eq smtp
192.168.1.X is a local ip address ,, i trust that thhe vpn is in seperate places and is done with the wan ip over an internet connection?????
OK maybe the problem isnt on your side but the main office building,, when connecting , have someone looked for repeated attemps to connect by observing the fire wall,, if it appears to be blocked byu the firewall simply diasable any and try it out.. If it works then all you need to do is set the firewall correctly..
I was reading the ip address in your original post and those are local address,s are you certin the VPN is correct ???? did you use the correct STATIC IP ADDRESS ASSIGNED BY YOUR ISP??
It could be a missing route... are the file server and email server on the same subnet? If they are then it is possibly not a routing issue.
Also it would be worth checking the tunneling settings for the VPNs... if you have specifed either only the fileserver subnet or specifically the file server address, then this could be the reason they can get to nothing else.
Please find below is to configure what ever you want.
Setup Wizard - This wizard will help you quickly configure the SonicWALL to secure your Internet connection. Once completed, you can use the SonicWALL Web Management Interface for additional configuration.
Registration & License Wizard - This wizard will help you register you and your firewall with mysonicwall.com and obtain licenses for additional Security Services features.
PortShield Interface Wizard - Segment and configure the integrated managed LAN switch of the SonicWALL.
Public Server Wizard - Quickly configure your SonicWALL to provide public access to an internal server.
VPN Wizard - Create a new site-to-site VPN Policy or configure the WAN GroupVPN to accept connections from the SonicWALL Global VPN Client
You might have to create a custom exception rule for Outlook.exe, but this can create compromises to your overall security. Please see article here and here and here and here Also be aware that 3com has a support forum online that may be of some assistance if you can't get it work.
I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread. If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!
Could you please explain me how to you are trying to establish the vpn its a site to site or site to client another thing if you are connecting to head office through mobile user client behind any natted device you should enable nat traversal in your firewall then only i will works.
The key with any VPN solution is to make sure that the configurations on both ends match. I am not very familiar with this particular product, but it looks like you need to have the proper VPN licenses installed first.
There are two types of VPN you can do.
1) Site to Site - This is where the are two static boxes that you want to create an encrypted tunnel between
2) Remote User access - This is where mobile users connect to a central site over an encrypted tunnel from their home or on the road.
Next, take a looks at the User Guide PDF here:
Chapter 10 tells how to configure the VPN on the Firebox side. You would just duplicate your settings if your doing option #1.
Chapter 11 tells how to configure the VPN on the client side. This section would tell you how to configure the client software for option #2.
Hope this helps.