ZyXEL Communications XMG1930-30 User Manual page 537

Figure 390 SECURITY > IPv6 Source Guard > DHCPv6 Trust Setup
The following table describes the labels in this screen.
Table 309 SECURITY > IPv6 Source Guard > DHCPv6 Trust Setup
LABEL DESCRIPTION
Trust Setting
Active Enable the switch button 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 Setting
Port This field displays the port number.
* 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.
Chapter 75 ARP Inspection
XMG1930 Series User's Guide
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