No internet since VPN running

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Tags:
Networking
Routers
I'm trying to get VPN work on the Netgear FWAG114 router. As soon as I Enable the VPN, there is no internet access for the computers on the network. Has anybody got a solution? My settings: Encryption: 3DES Algorythm: MD5 DH Group: 2 Lifetime: 3600 Remote endpoint: IP 0.0.0.0 (dynamic IP of the client) Local traffic selector: any Remote traffic selector: any Seems to be O.K. So why doesn't it work? Thank you in advance
ASKED: April 7, 2005  7:09 AM
UPDATED: April 8, 2005  4:38 PM

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I am NOT familiar with your device, but VPN’s traditionally work by putting the client into a tunnel connection using specific ports(IP). By definition the clients close all other ports for security, If you close port 80 – no internet. Check to see what ports on the clients are open when the VPN is ‘ON’.

Good luck.

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  • Aclark95
    You said clients on the network, do you mean the clients inside your network or the VPN clients connecting to your network? Once you start the VPN from a remote system it closes port 80 for security reasons.
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  • MennoT
    As Howard2nd says, the VPN software normally sets the default route to the tunnel. Even more, when you make an attempt to set another route outside the tunnel, the client software will normally immediately add a similar route through the tunnel with a better metric, making it impossible to use that route and, for instance, reach the Internet directly indeed. For security reasons, it *should* be like this. If available, the option 'split tunneling' will aprovide you with the desired simultaneous Internet access nevertheless. This should be somewhere in your client settings. This option is (for security reasons!) not always available.
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  • Nephi1
    I know with MS Windows, it auto defaults to using the VPN as the default connection, regardless that it can not access the internet or not. Also noted is the fact that if route 0.0.0.0(IP) 0.0.0.0(submask) is redirected to the normal gateway then it will work like it is ment to.
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  • Wdorciak
    Couple things to try. On the VPN client, right click on VPN connection select properties, click on networking tab, select Internet Protocol (TCP/IP), click properties button, and click on advanced button. On general tab - the "Use default gateway on remote network" uncheck. That would allow client to access the Internet without going over the VPN connection. If you do want to use the VPN connection to access the Internet (for security reasons as mentioned before), you have to make sure that the IP address that VPN interface is assigned by your VPN server is not blocked by corporate firewall from being able to access the Internet.
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  • Boardinhank
    Not sure if you are getting anywhere with this or not, lots of options involved, but when you connect vpn you will get a new ip address for the vpn connection, check what it is, see if you can talk to your gateway, does it give you a dns address? sometimes you are just not resolving the URL google into the ip address, so ping google.com see if it gives you an address. Chack your logs enable them if they are not. BLah BLah BLah... working from DOS is a helpful way to see why you cant go from point A to point B...
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