Table 94: Dhcp Snooping Commands - Edge-Core ECS4510-28P User Manual

show web-auth
summary
DHCP 4 S
V NOOPING
This command displays a summary of web authentication port parameters
and statistics.
C M
OMMAND ODE
Privileged Exec
E
XAMPLE
Console#show web-auth summary
Global Web-Auth Parameters
System Auth Control
Port Status
---- ------
1/ 1 Disabled
1/ 2 Enabled
1/ 3 Disabled
1/ 4 Disabled
1/ 5 Disabled
. .
.
DHCPv4 snooping allows a switch to protect a network from rogue DHCPv4
servers or other devices which send port-related information to a DHCPv4
server. This information can be useful in tracking an IP address back to a
physical port. This section describes commands used to configure DHCPv4
snooping.

Table 94: DHCP Snooping Commands

Command
ip dhcp snooping
ip dhcp snooping
information option
ip dhcp snooping
information policy
ip dhcp snooping verify
mac-address
ip dhcp snooping vlan
ip dhcp snooping
information option circuit-id
ip dhcp snooping trust
clear ip dhcp snooping
binding
clear ip dhcp snooping
database flash
ip dhcp snooping database
flash
– 909 –
C 27
HAPTER
: Enabled
Authenticated Host Count
------------------------
0
8
0
0
0
Function
Enables DHCP snooping globally
Enables or disables the use of DHCP Option 82
information, and specifies frame format for the
remote-id
Sets the information option policy for DHCP client
packets that include Option 82 information
Verifies the client's hardware address stored in the
DHCP packet against the source MAC address in the
Ethernet header
Enables DHCP snooping on the specified VLAN
Specifies DHCP Option 82 circuit-id suboption
information
Configures the specified interface as trusted
Clears DHCP snooping binding table entries from
RAM
Removes all dynamically learned snooping entries
from flash memory.
Writes all dynamically learned snooping entries to
flash memory
| General Security Measures
DHCPv4 Snooping
Mode
GC
GC
GC
GC
GC
IC
IC
PE
PE
PE