VPN Client connect to a TL-ER604W VPN Server cannot connect to the Internet

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VPN Client connect to a TL-ER604W VPN Server cannot connect to the Internet
VPN Client connect to a TL-ER604W VPN Server cannot connect to the Internet
2014-11-14 03:29:46 - last edited 2021-08-21 04:27:48
Region : Brazil

Model : TL-ER604W

Hardware Version : V1

Firmware Version : 1.0.0 Build 20130116 Rel.52243s

ISP : VELOX


Hi,

I am using a TL-ER604W configured with 2 WAN, WIFI and a L2TP VPN Server.

The VPN uses the WAN1 Internet IP address.

The VPN Client can connect without problem on the server, but it cannot access the Internet through the remote site, using domain name. However, using the IP address, the client can browse the Internet. It looks like a dns resolution problem.

The option "Enable VPN-to-Internet" is set.

The IPCONFIG command on windows 7 VPN client displays the gateway address as 0.0.0.0 and the DSN Server address as the er604w Lan IP (192.168.0.1).

The client can access the server web interface, but the dsn name translation using nslookup command ends with timeout.

Could anyone give me any suggestion?

Reagards

José
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Re:VPN Client connect to a TL-ER604W VPN Server cannot connect to the Internet
2014-11-26 04:08:36 - last edited 2021-08-21 04:27:48
I was able to replicate the problem. I have tested both work-arounds successfully.
Work-around #1 Have the client software/hardware specify the TL-ER604W outside NAT address as the primary DNS server and make an exception in the Access list for DNS on the TL-ER604W. (Only useful if you have a static IP address for your TL-ER604W).
Work-around #2 Setup a DNS server on your TL-ER604W LAN and have clients specify that as their primary DNS address.

Otherwise the TL-ER604W firmware must allow configurable options for ms-dns, ms-wins & localip in /etc/ppp/pptpd-options for the router.
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Re:VPN Client connect to a TL-ER604W VPN Server cannot connect to the Internet
2014-11-26 16:40:49 - last edited 2021-08-21 04:27:48
Thanks for your reply.

I also got a work-around by setting the google public dns (8.8.8.8) on the windows 7 client vpn.
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Re:VPN Client connect to a TL-ER604W VPN Server cannot connect to the Internet
2014-11-27 22:33:44 - last edited 2021-08-21 04:27:48
Latest Firmware Build Solves this issue with configurable ms-dns options and VPN IP range within LAN DHCP range.
Firmware Version: 1.1.0 Build 20141031 Rel.32628s
Hardware Version: TL-ER604W v1.0






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