Solved

Cannot access internet via vpn and squid proxy

Posted on 2008-10-12
5
834 Views
Last Modified: 2013-12-14
This is a bit outside my area of expertise, any pointers welcome. The MD of a company I support has moved to Spain, but wants to access certain UK-only services. I have set up a Squid proxy server on a box running XP Pro. It has an ADSL connection via an ethernet router. If I set my browser on my (remote) pc to use this proxy, specifying an internal address (192.168.x.x) and port 3128, once I have established a vpn connection, it works just fine. When the MD brings his laptop to London and is connected via the main corporate network, he is also able to connect via the vpn to the proxy server and it works just fine. Using his ISP in Spain or Vodafone 3G access, however, nothing happens. I am assuming the ISP blocks the port. Is this likely to be the case and if so, how can I find a port that isn't blocked.

Many thanks for your help...Chris
0
Comment
Question by:chrisp666
  • 3
  • 2
5 Comments
 
LVL 76

Expert Comment

by:arnold
ID: 22698687
If the person is able to establish a VPN connection, the functionality should be there if the browser if properly configured to use the proxy.

Not sure whether setting up a proxy for some one to bypass the locale restriction is a good practice.  
0
 

Author Comment

by:chrisp666
ID: 22700608
Maybe not, but he's the MD! It works just fine with one ISP, so the fundamental set up is ok.
0
 
LVL 76

Expert Comment

by:arnold
ID: 22702824
If the VPN cannot be established, this means that the ISP is blocking it.  If a VPN is established, that would mean that there might be IP overlap.  Check the local IPs versus the IP on the VPN LAN (include the netmask).
 
0
 

Author Comment

by:chrisp666
ID: 22708806
Ah...a good point...I had not thought of that, thanks Arnold, I will have a look. The vpn does establish, by the way.
0
 

Accepted Solution

by:
chrisp666 earned 0 total points
ID: 22709671
Arnold, it wasn't that. Clearing 'use default gateway on remote network' solved the problem. Thanks anyway though.
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

This is the first one of a series of articles I’ll be writing to address technical issues that are always referred to as network problems. The network boundaries have changed, therefore having an understanding of how each piece in the network  puzzl…
Let’s list some of the technologies that enable smooth teleworking. 
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now