Replaced ASN bounds with constants

netbox/dcim/fields.py

@@ -3,16 +3,18 @@ from django.core.validators import MinValueValidator, MaxValueValidator
 from django.db import models
 from netaddr import AddrFormatError, EUI, mac_unix_expanded
 
+from .constants import *
+
 
 class ASNField(models.BigIntegerField):
     description = "32-bit ASN field"
     default_validators = [
-        MinValueValidator(1),
-        MaxValueValidator(4294967295),
+        MinValueValidator(BGP_ASN_MIN),
+        MaxValueValidator(BGP_ASN_MAX),
     ]
 
     def formfield(self, **kwargs):
-        defaults = {'min_value': 1, 'max_value': 4294967295}
+        defaults = {'min_value': BGP_ASN_MIN, 'max_value': BGP_ASN_MAX}
         defaults.update(**kwargs)
         return super().formfield(**defaults)