Ipv6 Dhcp Trust Setup - ZyXEL Communications 43222612 User Manual

28.10 IPv6 DHCP Trust Setup

Use this screen to specify which ports are trusted for DHCPv6 snooping. To open this screen, click
Advanced Application > IP Source Guard > IPv6 DHCP Trust Setup.
Note: DHCPv6 solicit packets are sent from a DHCPv6 client to a DHCPv6 server. Reply
packets from a DHCPv6 server connected to an untrusted port are discarded.
Use port * to have all ports be Untrusted or Trusted.
Figure 216 Advanced Application > IP Source Guard > IPv6 DHCP Trust Setup
The following table describes the labels in this screen.
Table 138 Advanced Application > IP Source Guard > IPv6 DHCP Trust Setup
LABEL
Trust Setting
Active
Port Setting
Port
*
Trusted State
Chapter 28 ARP Inspection
DESCRIPTION
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.
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.
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.
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