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[Openvpn-users] DNS and WINS queries and broadcast traffic from clients


  • Subject: [Openvpn-users] DNS and WINS queries and broadcast traffic from clients
  • From: "Gary Martin" <gm4rtin@xxxxxxxxx>
  • Date: Mon, 12 Feb 2007 14:09:57 -0500

I have the following lines in my OpenVPN server configuration file:

local 172.16.1.1
port 1194
proto udp
dev tun
server 10.1.0.0 255.255.0.0

push "route 192.168.2.0 255.255.255.0"
push "route 192.168.1.0 255.255.255.0"
push "dhcp-option DNS 192.168.1.1"
push "dhcp-option WINS 192.168.1.1"

ifconfig-pool-persist ipp.txt
keepalive 10 30
status /var/log/openvpn/status.log 1
verb 3
mute 10
comp-lzo

max-clients 20

user nobody
group nobody
persist-key
persist-tun

I captured packets on the server's tun0 and discovered that DNS and WINS queries from my windows clients are being forwarded to my internal servers for non-internal addresses.  I was hoping that the "dhcp-option DNS" would act as a secondary name server for the client to resolve hostnames.  I am also getting broadcast traffic showing up in my DMZ from the OpenVPN server that I would like to eliminate.  Can anyone help me remedy these two situations?  Thanks.

Gary
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