Chapter 62 DHCP
XGS2220 Series User’s Guide
421
The following table describes the labels in this screen.
62.6.1 Add/Edit DHCPv6 Relay
Use this screen to add/edit DHCPv6 relay settings for a specific VLAN on the Switch. Click Add/Edit, or
select an entry and click Add/Edit in the NETWORKING > DHCP > DHCPv6 Relay screen to display this
screen.
Figure 315 NETWORKING > DHCP > DHCPv6 Relay > Add/Edit
The following table describes the labels in this screen.
Table 237 NETWORKING > DHCP > DHCPv6 Relay
LABEL DESCRIPTION
VID This field displays the VLAN ID number.
Helper Address This field displays the IPv6 address of the remote DHCPv6 server for this VLAN.
Interface ID This field displays whether the interface-ID option is added to DHCPv6 requests from clients in this
VLAN.
Remote ID This field displays whether the remote-ID option is added to DHCPv6 requests from clients in this
VLAN.
Select an entry’s check box to select a specific entry. Otherwise, select the check box in the
table heading row to select all entries.
Add/Edit Click Add/Edit to add a new entry or edit a selected one.
Delete Click Delete to remove the selected entries.
Table 238 NETWORKING > DHCP > DHCPv6 Relay > Add/Edit
LABEL DESCRIPTION
VID Enter the ID number of the VLAN to which the DHCPv6 server that will assign IP information
belongs here.
Helper Address Enter the IPv6 address of the DHCPv6 server that will assign IP information here.
An 128-bit IPv6 address is written as eight 16-bit hexadecimal blocks separated by colons (:). This
is an example IPv6 address ‘2001:0db8:1a2b:0015:0000:0000:1a2f:0000’.
IPv6 addresses can be abbreviated in two ways:
• Leading zeros in a block can be omitted. So ‘2001:0db8:1a2b:0015:0000:0000:1a2f:0000’ can
be written as ‘2001:db8:1a2b:15:0:0:1a2f:0’.
• Any number of consecutive blocks of zeros can be replaced by a double colon. A double
colon can only appear once in an IPv6 address. So
‘2001:0db8:0000:0000:1a2f:0000:0000:0015’ can be written as
‘2001:0db8::1a2f:0000:0000:0015’, ‘2001:0db8:0000:0000:1a2f::0015’, ‘2001:db8::1a2f:0:0:15’
or ‘2001:db8:0:0:1a2f::15’.
Interface ID Enable the switch button to have the Switch add the interface-ID option in the DHCPv6 requests
from the clients in the specified VLAN before the Switch forwards them to a DHCPv6 server.
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