[FS#3261] DHCP IP conflict and the whole DHCP stops working

OpenWrt Bugs openwrt-bugs at lists.openwrt.org
Fri Jul 31 06:50:42 EDT 2020


A new Flyspray task has been opened.  Details are below. 

User who did this - Sethox (Sethox) 

Attached to Project - OpenWrt/LEDE Project
Summary - DHCP IP conflict and the whole DHCP stops working
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Very Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Supply the following if possible:
 - Device problem occurs on __Linksys WRT3200ACM__
 - Software versions of OpenWrt/LEDE release, packages, etc. - __dnsmasq__

 - Problem: If there is an IP conflict between two devices to LAN interface the whole DHCP stops working for the whole LAN subnet.

 - Steps to reproduce
      1. Set two devices/with different MAC-addresses (or more) on static leases with the same IP

 - My opinion: Have the the devices trying to connect (that has a conflict) to get the error conflict IP message (on receiving end) as soon as a conflict happens; DHCP continue working despite a conflict has occurred.

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