Add IP to apache log -varnish

gistfile1.txt

default_vcl add to vcl_recv func

if (req.restarts == 0) {
  if (req.http.X-Forwarded-For) {
    set req.http.X-Forwarded-For = req.http.X-Forwarded-For + ", " + client.ip;
  } else {
    set req.http.X-Forwarded-For = client.ip;
  }
}

Add this to httpd or apache2 conf
LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" varnishcombined

Add this to vhost
CustomLog /var/log/httpd/www.abc.com/access.log varnishcombined