AR750 as OpenVPN client, no DNS for far network

Technical Support for Routers
13

Here is a copy and paste solution, just change the name of your client config file, paste into the ssh connection and it will do the rest:

cat<<'EOF' >> /etc/openvpn/<YOUR_CLIENT_FILE_NAME>.ovpn
script-security 2
up /etc/openvpn/updns
down /etc/openvpn/downdns
EOF

cat<<'EOF' > /etc/openvpn/updns
#!/bin/sh
mv /tmp/resolv.conf.auto /tmp/resolv.conf.auto.hold
echo $foreign_option_1 | sed -e 's/dhcp-option DOMAIN/domain/g' -e 's/dhcp-option DNS/nameserver/g' > /tmp/resolv.conf.auto
echo $foreign_option_2 | sed -e 's/dhcp-option DOMAIN/domain/g' -e 's/dhcp-option DNS/nameserver/g' >> /tmp/resolv.conf.auto
echo $foreign_option_3 | sed -e 's/dhcp-option DOMAIN/domain/g' -e 's/dhcp-option DNS/nameserver/g' >> /tmp/resolv.conf.auto
EOF

cat<<'EOF' > /etc/openvpn/downdns
#!/bin/sh
mv /tmp/resolv.conf.auto.hold /tmp/resolv.conf.auto
EOF

chmod 755 updns
chmod 755 downdns

Change the WAN DNS to default (ie blank fields) if you set a DNS manually and don’t mind the warning about DNS leaks. Easy :smiley:

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