User’s Manual of GS-5220-16S8C & GS-5220-16S8CR
Buttons
: Click to apply changes
: Click to undo any changes made locally and revert to previously saved values.
4.12.9 Snooping Table
This page display the dynamic IP assigned information after DHCP Snooping mode is disabled. All DHCP clients
obtained the dynamic IP address from the DHCP server will be listed in this table except for local VLAN interface IP
addresses. Entries in the Dynamic DHCP snooping Table are shown on this page
. The Dynamic DHCP Snooping Table
screen in Figure 4-12-9 appears.
Figure 4-12-9: Dynamic DHCP Snooping Table Screen Page Screenshot
Buttons
Auto-refresh : Check this box to refresh the Page automatically. Automatic refresh occurs every 3 seconds.
: It will use the last entry of the currently displayed table as a basis for the next lookup. When the end is
reached the text "No more entries" is shown in the displayed table
: To start over
4.12.10 IP Source Guard Configuration
IP Source Guard is a secure feature used to restrict IP traffic on DHCP snooping untrusted ports by filtering traffic based on
the DHCP Snooping Table or manually configured IP Source Bindings. It helps prevent IP spoofing attacks when a host tries to
spoof and use the IP address of another host. This Page provides IP Source Guard related configuration. The IP Source Guard
Configurati
on screen in Figure 4-12-10 appears.
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