Qtech QSW-8200-28T-POEAC- DC Команды для dhcp-сервера онлайн [13/79] 481628

User Manual

Chapter 1. Commands for DHCP 13

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 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

1.1.19 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.

 Default Settings: No more than 2 Ping request messages will be sent by default.

 Command Mode: Global Configuration Mode.

 Examples: Set the max number of Ping request (Echo Request) message to be sent in

Ping-detection of conflict on DHCP server as 3.

 Switch(config)#ip dhcp ping packets 3

 Related Command: ip dhcp conflict ping-detection enable, ip dhcp ping timeout

1.1.20 ip dhcp ping timeout

 Command: ip dhcp ping timeout <timeout-value>

 no ip dhcp ping timeout

 Function: Set the timeout period (in ms) of waiting for a reply message (Echo Request)

after each Ping request message (Echo Request) in Ping-detection of conflict on DHCP

server, whose default value is 500ms. The no operation of this command will restore

the default value.

 Parameters: <timeout-value> is the timeout period of waiting for a reply message after

each Ping request message in Ping-detection of conflict.

 Default Settings: The timeout period is 500ms by default.

 Command Mode: Global Configuration Mode.

 Examples: Set the timeout period (in ms) of waiting for each reply message (Echo

Request) in Ping-detection of conflict on DHCP server as 600ms.

 Switch(config)# ip dhcp ping time out 600

 Related Command: ip dhcp conflict ping-detection enable, ip dhcp ping packets