Siemens S223 User Manual

UMN:CLI                                                                                                                                                              User  Manual 

SURPASS hiD 6615 S223/S323 R1.5 

244                                                                         A50010-Y3-C150-2-7619 

To select a recognition method of DHCP clients, use the following command. 

  {client-id | 

} 

Global 

Selects a recognition method of DHCP clients 

 

Before assigning an IP address to a DHCP client, a DHCP server will validate if the IP 
address is used by another DHCP client with a ping or ARP. If the IP address does not re-
spond to a requested ping or ARP, the DHCP server will realize that the IP address is not 
used then will assign the IP address to the DHCP client. 

To select an IP address validation method, use the following command. 

 {arp | ping} 

Global 

Selects an IP address validation method. 

 

You can also set a validation value of how many responses and how long waiting (time-
out) for the responses from an IP address for a requested ping or ARP when a DHCP 
server validates an IP address. 

To set a validation value of how many responses from an IP address for a requested ping 
or ARP, use the following command. 

  {arp | ping}  packet <0-

20> 

Global 

Sets a validation value of how many responses. 
0-20: response value (default: 2) 

 

To set a validation value of timeout for the responses from an IP address for a requested 
ping or ARP, use the following command. 

  {arp | ping}  timeout 

<100-5000> 

Global 

Sets a validation value of timeout for the responses in 
the unit of millisecond. 
100-5000: timeout value (default: 500) 

 

The authorized ARP is to limit the leasing of IP addresses to authorized users. This func-
tion strengthens security by blocking ARP responses from unauthorized users at the 
DHCP server. 

To disacrd an ARP response from unauthorized user, use the following command. 

 <120-

2147483637> 

Discards an ARP response from unauthorized user. 
120-2147483637: starting time (multiples of 30) 

Global 

Disables the authorized ARP function.