I'm trying to use CURL over a VPN rather than the public internet. To do this I am using this setting in the CURL request:

curl_setopt($ch, CURLOPT_INTERFACE, "eth0:01");

The value eth0:01 comes from:


Located in /etc/sysconfig/network-scripts/ifcfg-eth0:1

The error I get back from CURL is:

Curl error: Could not resolve host: eth0:01; Name or service not known

Is there something else I need to do to allow this traffic over the VPN. I'm using a Linux server.

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