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embos/IP NetBIOS

The embOS/IP NetBIOS implementation is an optional extension which can be seamlessly integrated into your application. It combines a maximum of performance with a small memory footprint. The NetBIOS implementation allows an embedded system to resolve NetBIOS names in the local area network.

The  NetBIOS  module  implements  the  relevant  parts  of  the  following  Request  For Comments (RFC). 

RFC# Description
[RFC 1001] NetBIOS Concenpts and methods
Direct download:
[RFC 1002] NetBIOS Detailed Specifications
Direct download:



  • Low memory footprint.
  • Seamless integration with the embOS/IP stack.
  • Client based NetBIOS name resolution.


TCP/IP stack

The embOS/IP NetBIOS implementation requires the embOS/IP TCP/IP stack.


NetBIOS backgrounds

The Network Basic Input/Output System protocol is an API on top of the TCP/IP protocol, it provides a way of communication between separate computers within a local arena network via the session layer.



Using NetBIOS, an embOS/IP application can resolve a NetBIOS name to an IP adress in the local area network.


Resource usage

The ROM usage depends on the compiler options, the compiler version and the used CPU. The memory requirements of the NetBIOS module presented in the tables below have been measured on an ARM7 and a Cortex-M3 system. Details about the further configuration can be found in the sections of the specific example.

ROM usage on an ARM7 system

The  following  resource  usage  has  been  measured  on  an  ARM7  system  using  IAR Embedded Workbench V6.30.6, Thumb mode, no interwork, size optimization.

Add-on ROM
embOS/IP NetBIOS module Approximately 0.8 KByte

ROM usage on a Cortex-M3 system

The following resource usage has been measured on a Cortex-M3 system using IAR Embedded Workbench V6.30.6, size optimization.

Add-on ROM
embOS/IP NetBIOS module Approximately 0.7 KByte

RAM usage

Add-on ROM
embOS/IP NetBIOS module Approximately 26 Bytes