old_contents: from django.conf import settings
  
  
  # Search for the real IP address in the following order
  IPWARE_META_PRECEDENCE_LIST = getattr(settings,
      'IPWARE_META_PRECEDENCE_LIST', (
          'HTTP_X_FORWARDED_FOR', # client, proxy1, proxy2 (set by: Proxy or LB)
          'HTTP_X_REAL_IP', # client (set by: Proxy or LB)
          'REMOTE_ADDR', # client (direct connection)
      )
  )
  
  # Private IP addresses
  # http://www.ietf.org/rfc/rfc3330.txt (IPv4)
  # http://www.ietf.org/rfc/rfc5156.txt (IPv6)
  IPWARE_PRIVATE_IP_PREFIX = getattr(settings,
      'IPWARE_PRIVATE_IP_PREFIX', (
          '0.', # non-routable or local broadcast
          '10.', # class A private block
          '169.254.', # link-local block
          '172.16.', '172.17.', '172.18.', '172.19.',
          '172.20.', '172.21.', '172.22.', '172.23.',
          '172.24.', '172.25.', '172.26.', '172.27.',
          '172.28.', '172.29.', '172.30.', '172.31.', # class B private blocks
          '192.0.2.', # reserved for documentation and example code
          '192.168.', # class C private block
          '255.', # IPv4 broadcast address
      ) + (  # the following addresses MUST be in lowercase)
          '2001:db8:', # reserved for documentation and example code
          'fc00:', # IPv6 private block
          'fe80:', # link-local unicast
          'ff00:', # IPv6 multicast
      )
  )
  
  IPWARE_NON_PUBLIC_IP_PREFIX = IPWARE_PRIVATE_IP_PREFIX + (
      '127.', # IPv4 loopback device
      '::1', # IPv6 loopback device
  )
  
  
  
new_contents: from django.conf import settings
  
  
  # Search for the real IP address in the following order
  IPWARE_META_PRECEDENCE_LIST = getattr(settings,
      'IPWARE_META_PRECEDENCE_LIST', (
          'HTTP_X_FORWARDED_FOR', # client, proxy1, proxy2
          'HTTP_CLIENT_IP',
          'HTTP_X_REAL_IP',
          'HTTP_X_FORWARDED',
          'HTTP_X_CLUSTER_CLIENT_IP',
          'HTTP_FORWARDED_FOR',
          'HTTP_FORWARDED',
          'HTTP_VIA',
          'REMOTE_ADDR',
      )
  )
  
  # Private IP addresses
  # http://www.ietf.org/rfc/rfc3330.txt (IPv4)
  # http://www.ietf.org/rfc/rfc5156.txt (IPv6)
  IPWARE_PRIVATE_IP_PREFIX = getattr(settings,
      'IPWARE_PRIVATE_IP_PREFIX', (
          '0.', '1.', '2.', # nont externally routable
          '10.', # class A private block
          '169.254.', # link-local block
          '172.16.', '172.17.', '172.18.', '172.19.',
          '172.20.', '172.21.', '172.22.', '172.23.',
          '172.24.', '172.25.', '172.26.', '172.27.',
          '172.28.', '172.29.', '172.30.', '172.31.', # class B private blocks
          '192.0.2.', # reserved for documentation and example code
          '192.168.', # class C private block
          '255.255.255.', # IPv4 broadcast address
      ) + (  # the following addresses MUST be in lowercase)
          '2001:db8:', # reserved for documentation and example code
          'fc00:', # IPv6 private block
          'fe80:', # link-local unicast
          'ff00:', # IPv6 multicast
      )
  )
  
  IPWARE_NON_PUBLIC_IP_PREFIX = IPWARE_PRIVATE_IP_PREFIX + (
      '127.', # IPv4 loopback device
      '::1', # IPv6 loopback device
  )
  
  
  
subject: add to precedence list