Dhcp server on lan



Download 18.54 Kb.
View original pdf
Date13.03.2019
Size18.54 Kb.


Knowledge Base
KB-0267-00 / Rev. 1.1
DHCP Server on LAN
1. Introduction
As of firmware 11.2, the eWON Flexy and Cosy131 are able to act as a DHCP server on its LAN interface.
This allows you to attribute IP addresses dynamically to devices that join the eWON LAN network. This is indeed very useful in case you connect your laptop to the eWON LAN network in order to troubleshoot the eWON or another LAN device (such as a PLC).
Another use case is to use eWON as an Internet gateway. In this case, the parameter "Nat and TF" must beset on "NAT on WAN" (NatItf : However, we still recommend the use of static IP addresses for the devices that you want to remote access.
2. Configuration
As the misuse of this feature can cause major issues on a network (Ex : Connect the eWON LAN, on which the DHCP server is enabled, to a network where there is already a DHCP server, this feature is dedicated to eWON experts. That's the reason why the LAN DHCP server is disabled by default and no configuration menus have been developed. The configuration is exclusively done thanks to the advanced communication parameters
(comcfg.txt).
Here is the list of advanced parameters that can be configured for the eWON LAN DHCP Server :
Parameters
Description
LANDHCPSEnable
1 : Enable DHCP Server : Disable DHCP Server (Default)
Page 1 / 3
DHCP Server on LAN | KB-0267-00


Knowledge Base
KB-0267-00 / Rev. 1.1
Parameters
Description
LANDHCPSStartIP
Start IP address of the Dynamic IP address pool (Default = 0.0.0.0). This IP address must be in the range of eWON
LANDHCPSEndIP
End IP address of the Dynamic IP address pool (Default = 0.0.0.0)
LANDHCPSLogLevel
Log level of the DHCP server (0,1 or. Default : 0)
LANDHCPSDns1
Primary DNS IP address attributed to DHCP Clients. If firmware version < 12, do not set the eWON LAN IP address since eWON is not a
DNS gateway.
Use a public DNS server or the corporate
LAN DNS Server.
LANDHCPSDns2
Secondary DNS IP address attributed to
DHCP Clients. Same as above.
Example of configuration (assuming the eWON LAN IP is 192.168.120.153):
LANDHCPSEnable:1
LANDHCPSStartIP:192.168.120.20
LANDHCPSEndIP:192.168.120.40
LANDHCPSLogLevel:0
LANDHCPSDns1:8.8.8.8
LANDHCPSDns2:8.8.4.4
- Notes -

Avoid including the eWON LAN IP address as well as the LAN device IP
addresses in the DHCP IP Addresses Pool. This, to prevent the LAN network from
duplicate IP addresses issues.

The lease time has been hard-coded to 1 hour.

DHCP IP addresses are attributed randomly. So, a LAN device may not
receive the same IP address at anew connection.
Page 2 / 3
DHCP Server on LAN | KB-0267-00


Knowledge Base
KB-0267-00 / Rev. 1.1
Revision
Revision History
Revision Level
Date
Description
1.0 Original version Changed “
LANDHCPSDns1 “ parameter for firmware < 12
Document build number 9
Note concerning the warranty and the rights of ownership:
The information contained in this document is subject to modification without notice. Check https://ewon.biz/support for the latest documents releases.
The vendor and the authors of this manual are not liable for the errors it may contain, nor for their eventual consequences.
No liability or warranty, explicit or implicit, is made concerning the quality, the accuracy and the correctness of the information contained in this document. In no case can the manufacturer's responsibility be called for direct, indirect, accidental or other damage occurring from any defect of the product or mistakes coming from this document.
The product names are mentioned in this manual for information purposes only. The trademarks and the product names or marks contained in this document are the property of their respective owners.
This document contains materials protected by the International Copyright Laws. All reproduction rights are reserved. No part of this handbook can be reproduced, transmitted or copied in anyway without written consent from the manufacturer and/or the authors of this handbook.
eWON sa,
Page 3 / 3
DHCP Server on LAN | KB-0267-00

Document Outline

  • 1. Endnotes
  • 1. Introduction
  • 2. Configuration
  • Revision
    • Revision History



Share with your friends:


The database is protected by copyright ©userg.info 2017
send message

    Main page

bosch
camera
chevrolet
epson
fiat
Honda
iphone
mitsubishi
nissan
Panasonic
Sony
volvo
xiaomi
Xperia
yamaha