XPost: comp.mobile.android, alt.os.linux, alt.comp.os.windows-10   
   From: pascal@plouf.fr.eu.org   
      
   Le 09/06/2019 à 09:26, Johann Beretta a écrit :   
   > On 4/11/17 3:10 PM, Tomos Davies wrote:   
   >> How does setting a static IP on a linux Android mobile device prevent the   
   >> linux router from assigning that IP address to another device?   
   >   
   > It doesn't   
      
    From dhcpd.conf manpage :   
   ========================================================================   
   IP ADDRESS CONFLICT PREVENTION   
   The DHCP server checks IP addresses to see if they are in use before   
   allocating them to clients. It does this by sending an ICMP Echo request   
   message to the IP address being allocated. If no ICMP Echo reply is   
   received within a second, the address is assumed to be free.   
   ========================================================================   
      
   Of course this works only if the device with the static address is   
   online and replies to ICMP echo (aka ping) requests.   
      
   > and if you set a static IP on your device, without telling   
   > the router, you risk an IP address conflict and can end up with   
   > colliding packets   
      
   Can you explain the relationship between packet collision (physical   
   layer) and IP address conflict (network layer) ?   
      
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