User manual

Chapter 26 IP Source Guard
GS2210 Series User’s Guide
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Figure 183 Advanced Application > IP Source Guard > IPv6 DHCP Trust Setup
The following table describes the labels in this screen.
Table 116 Advanced Application > IP Source Guard > IPv6 DHCP Trust Setup
LABEL DESCRIPTION
Active Select this to specify whether ports are trusted or untrusted ports for DHCP snooping. If you do
not select this then IPv6 DHCP Trust is not used and all ports are automatically trusted.
Port This field displays the port number. If you configure the * port, the settings are applied to all of
the ports.
* Settings in this row apply to all ports.
Use this row only if you want to make some settings the same for all ports. Use this row first to
set the common settings and then make adjustments on a port-by-port basis.
Note: Changes in this row are copied to all the ports as soon as you make them.
Trusted state Select whether this port is a trusted port (Trusted) or an untrusted port (Untrusted).
Trusted ports are connected to DHCPv6 servers or other switches.
Untrusted ports are connected to subscribers, and the Switch discards DHCPv6 packets from
untrusted ports in the following situations:
• The packet is a DHCPv6 server packet (for example, ADVERTISE, REPLY, or RELAY-REPLY).
• The source MAC address and source IP address in the packet do not match any of the
current bindings.
Apply Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to
save your changes to the non-volatile memory when you are done configuring.
Cancel Click this to reset the values in this screen to their last-saved values.