diff --git a/conntrackt/admin.py b/conntrackt/admin.py
--- a/conntrackt/admin.py
+++ b/conntrackt/admin.py
@@ -1,8 +1,48 @@
 from conntrackt.models import *
 from django.contrib import admin
+from django.core.urlresolvers import resolve
+
+class InterfaceInline(admin.StackedInline):
+    model = Interface
+    extra = 1
+
+def add_under_project(modeladmin, request, queryset):
+    print "Hello"
+add_under_project.short_description = "Do things."
+
+class CommunicationAdmin(admin.ModelAdmin):
+    list_display = ('source', 'destination', 'protocol', 'port', 'edit_link')
+    list_editable = ('source', 'destination', 'protocol', 'port')
+    list_display_links = ('edit_link',)
+    list_filter = ['source__entity__project', 'source__entity__location']
+    actions = [add_under_project]
+
+    def formfield_for_foreignkey(self, db_field, request, **kwargs):
+        view_name = resolve(request.path).view_name
+        if db_field.name == "source" or db_field.name == "destination":
+            interface_filter = {}
+            if 'source__entity__project__id__exact' in request.GET:
+                interface_filter['entity__project'] = request.GET['source__entity__project__id__exact']
+            if 'source__entity__location__id__exact' in request.GET:
+                interface_filter['entity__location'] = request.GET['source__entity__location__id__exact']
+            if interface_filter:
+                kwargs["queryset"] = Interface.objects.filter(**interface_filter)
+        return super(CommunicationAdmin, self).formfield_for_foreignkey(db_field, request, **kwargs)
+
+class EntityAdmin(admin.ModelAdmin):
+    inlines = [InterfaceInline]
+    list_display = ('name', 'project', 'location')
+    list_editable = ('project', 'location')
+    list_filter = ['project', 'location']
+
+class InterfaceAdmin(admin.ModelAdmin):
+    list_display = ('entity', 'address', 'netmask')
+    list_editable = ('address', 'netmask')
+
 
 admin.site.register(Project)
 admin.site.register(Location)
-admin.site.register(Entity)
-admin.site.register(Interface)
-admin.site.register(Communication)
+admin.site.register(Entity, EntityAdmin)
+admin.site.register(Interface, InterfaceAdmin)
+admin.site.register(Communication, CommunicationAdmin)
+