PLANET WGSW-52040 - Manual (Page 446)

28-57
no ip dhcp conflict ping-detection enable
Function:
Enable Ping-detection of conflict on DHCP server; the no operation of this command will disable the function.
Parameters:
None.
Default Settings:
By default, Ping-detection of conflict is disabled.
Command Mode:
Global Configuration Mode.
Usage Guide:
To enable Ping-detection of conflict, one should enable the log of conflict addresses, when which is disabled, so will
the ping-detection of conflict. When a client is unable to receive Ping request messages (when blocked by firewall,
for example), this function will check local ARP according to allocated IP: if a designated IP has a corresponding ARP,
then an address conflict exists; otherwise, allocate it to the client.
Examples:
Enable Ping-detection of conflict.
Switch(config)#ip dhcp conflict ping-detection enable
Related Command: ip dhcp conflict logging, ip dhcp ping packets, ip dhcp ping timeout
28.1.19 ip dhcp ping packets
Command:
ip dhcp ping packets <request-num>
no ip dhcp ping packets
Function:
Set the max number of Ping request (Echo Request) message to be sent in Ping-detection of conflict on DHCP
server, whose default value is 2; the no operation of this command will restore the default value.
Parameters:
<request-num> is the number of Ping request message to be sent in Ping-detection of conflict.