network_inventory/network_inventory/inventory/templates/inventory/net_details.html

{% extends "inventory/base.html" %}
{% block section_title %}{{ net.name }}{% endblock %}
{% block content %}
    <p>{{ net.range }}</p>
    <p>{{ net.ip_range }}</p>
    <p>{{ net.dhcp_range }}</p>
    <p>{{ net.customer }}</p>
{% endblock %}