<%= link_to "Find all IP addresses associated with these users", ip_addresses_path(search: { user_id: @ip_addresses.map(&:user_id).join(" "), group_by: "ip_addr" }) %>

<% @ip_addresses.each do |ip| %> <% end %>

User	Uses
<%= link_to_user ip.user %> <%= link_to "»", ip_addresses_path(search: { user_id: ip.user_id, group_by: "ip_addr" }) %>	<%= link_to ip.count_all, ip_addresses_path(search: { user_id: ip.user_id, ip_addr: params[:search][:ip_addr] }) %>