I am still struggling with this. I looked at the Classic theme that is included with WP. I copied from comments.php the following:
<?php comments_rss_link(__('RSS feed for comments on this post.')); ?>
<?php if ( pings_open() ) : ?>
" rel="trackback"><?php _e('TrackBack URI'); ?>
<?php endif; ?>
I placed this in the same spot of comments.php of the Impact theme. When I look at a specific post all appears correct. I now have an RSS feed for the comments of the post and a link to the trackback URI.
I then used the trackback URI on a post I have on a test site I have. My expectation was that the a snippet of that test post would display in the comments of the post of my regular site. My test site indicated I had successfully pinged the real site. Yet, nothing seemed to happen. Nothing was added to the comments.
I looked through index.php of the Classic theme and saw nothing about trackbacks to add to Impact’s index.php.
What am I missing?