Netgear GSM7328Sv2 - ProSAFE 24+4 Gigabit Ethernet L3 Managed Stackable Switch 管理员指南
262
|
Chapter 14. Security Management
ProSafe 7000 Managed Switch Release 8.0.3
c. Click Apply. A screen similar to the following displays.
DHCP Snooping
DHCP snooping is a security feature that monitors DHCP messages between a DHCP client
and DHCP server to filter harmful DHCP message and to build a bindings database of (MAC
address, IP address, VLAN ID, port) tuples that are considered authorized. The network
administrator enables DHCP snooping globally and on specific VLANs and configures ports
within the VLAN to be trusted or untrusted. DHCP servers must be reached through trusted
ports.
and DHCP server to filter harmful DHCP message and to build a bindings database of (MAC
address, IP address, VLAN ID, port) tuples that are considered authorized. The network
administrator enables DHCP snooping globally and on specific VLANs and configures ports
within the VLAN to be trusted or untrusted. DHCP servers must be reached through trusted
ports.
Interface 1/0/1
Interface 1/0/1
GSM73xxS
DHCP server
DHCP client
Figure 30. DHCP Snooping
The example is shown as CLI commands and as a Web interface procedure.
CLI: Configure DHCP Snooping
1.
Enable DHCP snooping globally.
(Netgear Switch) (Config)# ip dhcp snooping