ZyXEL Communications VES1724-56 User Manual page 323

Table 150 DHCPv6 LDRA (continued)
LABEL
Control
Untrust
Add
Cancel
VID
LDRA
Option18
Option37
Option18
(Interface ID)
Info
Option37
(Remote ID) Info
Select
Delete
Cancel
VES1724-56 User's Guide
DESCRIPTION
Select the role for each port on the Switch.
Client-facing: this is an interface on a DHCPv6 relay agent that forwards traffic towards
the DHCPv6 client. A client-facing interface on this Switch can be a DSL port or an
Ethernet port which connects another LDRA-enabled Switch or DSLAM.
Network-facing: this is an interface on a DHCPv6 relay agent that forwards traffic
towards the DHCPv6 server. A network-facing interface on this Switch should be an
Ethernet port.
Forbidden: select this to have the Switch not add any information to DHCPv6 requests it
receives. The Switch drops all DHCPv6 requests for a VLAN if this is set and DHCPv6 LDRA
is enabled on the VLAN.
A client-facing port only accepts the following types of DHCPv6 messages and drops the
others.
SOLICIT(1), REQUEST(3), CONFIRM(4), RENEW(5), REBIND(6), RELEASE(8),
DECLINE(9), INFORMATION-REQUEST(11), RELAY-FORW(12)
A network-facing port only accepts the following types of DHCPv6 messages and drops
the others.
RELAY-REPLY(13), ADVERTISE(2), REPLY(7), RECONFIGURE(10)
Note: You must configure at least one network-facing port on the Switch.
Note: Use the network-facing role for the Ethernet port you use as the uplink port to connect
towards the DHCPv6 server. Use the client-facing role for an Ethernet port on the
Switch that you use to connect a subtended (daisy-chained) LDRA-enabled Switch or
DSLAM. Use the network-facing role for the uplink port on the subtended Switch or
DSLAM. If an Ethernet port (ex. port 26) on the Switch is the uplink port that connects
to the DHCPv6 server and you connect port 25 to another LDRA-enabled Switch or
DSLAM, you must set port 26's role to network-facing and port 25's to client-facing.
The port role on the other end of port 25 must be set to network-facing.
Select Untrust Client to have the Switch drop all RELAY-FORW(12) type DHCPv6
messages.
Click Add to create a new DHCPv6 LDRA entry.
Click Cancel to begin configuring this screen afresh.
This is the ID number of the VLAN group. Click the link to modify the LDRA entry's
settings.
This field displays whether LDRA is enabled or not on this VLAN.
This field displays whether or not the system adds option 18 (Interface ID Info) to the
client DHCPv6 requests forwarded for this VLAN.
This field displays whether or not the system adds option 37 (Remote ID Info) to the
client DHCPv6 requests forwarded for this VLAN.
This field displays the option 18 (Interface ID) information to add to the client DHCPv6
requests forwarded for this VLAN to identify the interface which received the client
message.
This field displays the option 37 (Remote ID) information to add to the client DHCPv6
requests forwarded for this VLAN.
Select an entry's Delete check box and click the Delete button to remove the entry or
click Modify to edit the entry.
Click Delete to remove the selected entries.
Click Cancel to begin configuring this screen afresh.
Chapter 35 DHCP
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