diff --git a/abonapp/formfields.py b/abonapp/formfields.py
index a25937f..4e61e3c 100644
--- a/abonapp/formfields.py
+++ b/abonapp/formfields.py
@@ -1,17 +1,24 @@
-from django.forms import Field
+from django.forms import CharField
+from django.forms.widgets import TextInput
+from django.core.validators import RegexValidator, _lazy_re_compile
 from django.forms.fields import EMPTY_VALUES
-#"From Django 1.8: The django.forms.util module has been renamed. Use django.forms.utils instead."
-try:
-    from django.forms.utils import ValidationError
-except ImportError:
-    from django.forms.util import ValidationError
-
+from django.forms.utils import ValidationError
+from django.utils.translation import ugettext_lazy as _
 from netaddr import EUI, AddrFormatError
 
 
-class MACAddressField(Field):
+mac_address_validator = RegexValidator(
+    _lazy_re_compile(r'^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$'),
+    message=_('Enter a valid integer.'),
+    code='invalid',
+)
+
+
+class MACAddressField(CharField):
+    widget = TextInput
+    default_validators = [mac_address_validator]
     default_error_messages = {
-        'invalid': 'Enter a valid MAC Address.',
+        'invalid': _('Enter a valid MAC Address.'),
     }
 
     def clean(self, value):
@@ -27,5 +34,3 @@ class MACAddressField(Field):
         except (ValueError, TypeError, AddrFormatError):
             raise ValidationError(self.error_messages['invalid'])
         return value
-
-
diff --git a/abonapp/forms.py b/abonapp/forms.py
index d0fe5f6..a253024 100644
--- a/abonapp/forms.py
+++ b/abonapp/forms.py
@@ -5,6 +5,7 @@ from django.contrib.auth.hashers import make_password
 from random import choice
 from string import digits, ascii_lowercase
 from . import models
+from .formfields import MACAddressField
 
 
 def generate_random_username(length=6, chars=digits, split=2, delimiter=''):
@@ -74,6 +75,19 @@ class AbonForm(forms.ModelForm):
         return acc
 
 
+class Opt82Form(forms.ModelForm):
+    mac = MACAddressField(widget=forms.TextInput(attrs={'class': 'form-control', 'pattern': r'^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$', 'required': ''}))
+    class Meta:
+        model = models.Opt82
+        fields = '__all__'
+        widgets = {
+            'port': forms.NumberInput(attrs={'class': 'form-control', 'required': ''})
+        }
+
+    #def save(self, commit=True):
+    #    super().save(commit=commit)
+
+
 class AbonGroupForm(forms.ModelForm):
     class Meta:
         model = models.AbonGroup
diff --git a/abonapp/templates/abonapp/editAbon.html b/abonapp/templates/abonapp/editAbon.html
index 9c361eb..ef6160a 100644
--- a/abonapp/templates/abonapp/editAbon.html
+++ b/abonapp/templates/abonapp/editAbon.html
@@ -111,12 +111,30 @@
                     <h3 class="panel-title">{% trans 'Technical information' %}</h3>
                 </div>
                 <div class="panel-body">
-                    <form role="form" class="form-horizontal" action="#" method="post">{% csrf_token %}
+                    <form role="form" class="form-horizontal" action="{% url 'abonapp:opt82' abon_group.pk abon.pk %}" method="post">{% csrf_token %}
 
                         <div class="form-group-sm">
-                            <label for="id_ip" class="col-sm-2 control-label">{% trans 'Ip Address' %}</label>
+                            <label for="id_ip" class="col-sm-2 control-label">{% trans 'Mac Address' %}</label>
                             <div class="col-sm-10">
-                                <input type="text" value="{{ ip|default:'' }}" class="form-control" name="ip" placeholder="192.168.0.101" pattern="^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"/>
+                                {{ tech_form.mac }}{{ tech_form.mac.errors }}
+                            </div>
+                        </div>
+
+                        <div class="form-group-sm">
+                            <label for="id_ip" class="col-sm-2 control-label">{% trans 'Port' %}</label>
+                            <div class="col-sm-10">
+                                {{ tech_form.port }}{{ tech_form.port.errors }}
+                            </div>
+                        </div>
+
+                        <div class="form-group-sm">
+                            <div class="col-sm-offset-2 col-sm-10 btn-group btn-group-sm">
+                                <button type="submit" class="btn btn-primary btn-sm">
+                                    <span class="glyphicon glyphicon-save"></span> {% trans 'Save' %}
+                                </button>
+                                <button type="reset" class="btn btn-default btn-sm">
+                                    <span class="glyphicon glyphicon-refresh"></span> {% trans 'Reset' %}
+                                </button>
                             </div>
                         </div>
 
diff --git a/abonapp/templates/abonapp/group_list.html b/abonapp/templates/abonapp/group_list.html
index b56f13e..59fb7ed 100644
--- a/abonapp/templates/abonapp/group_list.html
+++ b/abonapp/templates/abonapp/group_list.html
@@ -45,7 +45,7 @@
                         {% endif %}
                         <a href="{% url 'abonapp:ch_group_tariff' gr.pk %}" class="btn btn-sm btn-default"
                            title="{% trans 'User groups' %}">
-                            <span class="glyphicon glyphicon-subscript"></span>
+                            <span class="glyphicon glyphicon-cog"></span>
                         </a>
                     </td>
                 </tr>
diff --git a/abonapp/urls_abon.py b/abonapp/urls_abon.py
index b13c1b3..23445e6 100644
--- a/abonapp/urls_abon.py
+++ b/abonapp/urls_abon.py
@@ -19,6 +19,7 @@ urlpatterns = [
     url(r'^(?P<uid>\d+)/passport_view$', views.passport_view, name='passport_view'),
     url(r'^(?P<uid>\d+)/complete_service(?P<srvid>\d+)$', views.complete_service, name='compl_srv'),
     url(r'^(?P<uid>\d+)/activate_service(?P<srvid>\d+)$', views.activate_service, name='activate_service'),
+    url(r'^(?P<uid>\d+)/opt82$', views.opt82, name='opt82'),
 
     url(r'^(?P<uid>\d+)/unsubscribe_service(?P<srvid>\d+)$', views.unsubscribe_service,
         name='unsubscribe_service'),
diff --git a/abonapp/views.py b/abonapp/views.py
index c5f17cb..fa13685 100644
--- a/abonapp/views.py
+++ b/abonapp/views.py
@@ -276,7 +276,8 @@ def abonhome(request, gid, uid):
             'form': frm or forms.AbonForm(instance=abon, initial={'password': passw}),
             'abon': abon,
             'abon_group': abon_group,
-            'ip': abon.ip_address
+            'ip': abon.ip_address,
+            'tech_form': forms.Opt82Form(instance=abon.opt82)
         })
     else:
         return render(request, 'abonapp/viewAbon.html', {
@@ -287,6 +288,27 @@ def abonhome(request, gid, uid):
         })
 
 
+@login_required
+@mydefs.only_admins
+def opt82(request, gid, uid):
+    try:
+        abon = models.Abon.objects.get(pk=uid)
+        if request.method == 'POST':
+            if abon.opt82 is None:
+                frm = forms.Opt82Form(request.POST)
+            else:
+                frm = forms.Opt82Form(request.POST, instance=abon.opt82)
+            if frm.is_valid():
+                abon.opt82 = frm.save()
+                abon.save(update_fields=['opt82'])
+            else:
+                messages.error(request, _('fix form errors'))
+
+    except models.Abon.DoesNotExist:
+        messages.error(request, _('User does not exist'))
+    return redirect('abonapp:abon_home', gid=gid, uid=uid)
+
+
 @mydefs.require_ssl
 def terminal_pay(request):
     from .pay_systems import allpay