DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide 
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Parameter  Description 
•  Keep - Specifies that the DHCPv6 request packets that already contain the 
relay agent interface ID option are left unchanged and directly relay to the 
DHCPv6 server. 
•  Drop - Specifies to discard the packets that already contain the relay agent 
interface ID Option 18. 
IPv6 DHCP Relay Interface 
ID Option 
Select to enable or disable the insertion of the relay agent interface ID Option 18 
during the relay of DHCP for IPv6 request packets. 
Click the Apply button to accept the changes made. 
 
The fields that can be configured in DHCPv6 Relay Information Option MAC Format are described below: 
Parameter  Description 
Case 
Select the case that will be used here. Options to choose from are: 
•  Lowercase - Specifies that the MAC format will be lowercase. For example: 
aa-bb-cc-dd-ee-ff. 
•  Uppercase - Specifies that the MAC format will be uppercase. For example: 
AA-BB-CC-DD-EE-FF. 
Delimiter 
Select the delimiter that will be used here. Options to choose from are: 
•  Hyphen - Specifies that the MAC address format will contain hyphens. For 
example: AA-BB-CC-DD-EE-FF. 
•  Colon - Specifies that the MAC address format will contain colons. For 
example: AA:BB:CC:DD:EE:FF. 
•  Dot - Specifies that the MAC address format will contain dots. For example: 
AA.BB.CC.DD.EE.FF. 
•  None - Specifies that the MAC address format will contain no delimiters. For 
example: AABBCCDDEEFF. 
Delimiter Number 
Specifies the delimiter number that will be used in the MAC address format here. 
Options to choose from are: 
•  1 - Specifies to use a single delimiter. For example: AABBCC.DDEEFF. 
•  2 - Specifies to use two delimiters. For example: AABB.CCDD.EEFF 
•  5 - Specifies to use multiple delimiters. For example: AA.BB.CC.DD.EE.FF 
Click the Apply button to accept the changes made. 
 
DHCPv6 Relay Interface Settings 
This window is used to display and configure the DHCPv6 relay interface settings. 
To view the following window, click Management > DHCP > DHCPv6 Relay > DHCPv6 Relay Interface Settings, as 
shown below: