14 prohibition of 1:n ip address assignment, 15 ignoring bootp request, 16 dhcp packet statistics – Siemens S223 User Manual
Page 245: Prohibition of 1:n ip address assignment, Ignoring bootp request, Dhcp packet statistics
User Manual UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5
A50010-Y3-C150-2-7619 245
To display a list of valid or invalid (blocked) IP addresses, use the following command.
Command Mode
Description
show ip dhcp authorized-arp
valid
Shows a list of valid IP addresses.
show ip dhcp authorized-arp
invalid
Enable
Global
Bridge
Shows a list of invalid (discarded) IP addresses.
To delete a list of invalid (blocked) IP addresses, use the following command.
Command Mode
Description
clear ip dhcp authorized-arp
invalid
Enable
Global
Bridge
Deletes a list of invalid (discarded) IP addresses.
8.8.1.14
Prohibition of 1:N IP Address Assignment
The DHCP server may assign plural IP addresses to a single DHCP client in case of plu-
ral DHCP requests from the DHCP client which has the same hardware address. Some
network devices may need plural IP addresses, but most DHCP clients like personal
computers need only a single IP address. In this case, you can configure the hiD 6615
S223/S323 to prohibit assigning plural IP addresses to a single DHCP client.
To prohibit assigning plural IP addresses to a DHCP client, use the following command.
Command Mode
Description
ip dhcp check client-hardware-
address
Prohibits assigning plural IP addresses.
no ip dhcp check client-
hardware-address
Global
Permits assigning plural IP addresses.
8.8.1.15
Ignoring BOOTP Request
To allow a DHCP server to ignore received bootstrap protocol (BOOTP) request packets,
use the following command.
Command Mode
Description
ip dhcp bootp ignore
Ignores BOOTP request packets.
no ip dhcp bootp ignore
Global
Permits BOOTP request packets.
8.8.1.16
DHCP Packet Statistics
To display DHCP packet statistics of the DHCP server, use the following command.
Command Mode
Description
show ip dhcp server statistics
Shows DHCP packet statistics.
clear ip dhcp statistics
Enable
Global
Bridge
Deletes collected DHCP packet statistics.