ZyXEL Communications OLT2406, User Manual

Page: 595 / 766

Chapter 82 DHCP
OLT2406 User’s Guide
595
Table 309 DHCP Relay Commands
COMMAND DESCRIPTION M P
show dhcp relay < vlan-id >
Displays DHCP relay settings for the specified
VLAN. E 3
dhcp relay < vlan-id > helper-
address < remote-dhcp-server1 >
[< remote-dhcp-server2 >] [< remote-
dhcp-server3 >] [option]
[information] [format < num >]
optional commands
Enables DHCP relay on the specified VLAN and
sets the IP address of up to 3 DHCP servers.
Optionally, sets the OLT to add relay agent
information and system name.
Note: You have to configure the VLAN
before you configure a DHCP relay
for the VLAN. You have to disable
dhcp smart-relay
before you can
enable
dhcp relay
.
Option 82 setting:
(A) option:
1. append [slot ponport vlan] into the DHCP
option 82 circuit ID.
2. append [client's mac] into the DHCP option
82 remote ID.
(B) information: append [system_name] behind
[slot ponport vlan] into the DHCP option 82
circuit ID.
If (A) & (B) are set at the same time, the circuit ID
format would be [slot ponport vlan
system_name]
(C) format <
num
>: append a specific format of
information into the circuit ID and remote ID.
Example:
format 1: append [SYS_ID SHELF/SLOT/
PONPORT:NNISVID.SNISVID ONTID/SN] into the
circuit ID
Remote ID is not required.
(D) option-info per ONT, use circuit ID and
remote ID setting in remote ONT option 82 if this
value is set.
(E) per system’s option-info:
dhcp l2agent
vlan <info>
Note: For PON ports, the OLT uses the
below rules as DHCP option 82
configurations.
(E) > (C) > (D) > (A) = (B)
For GE ports, the OLT uses the below
rules as DHCP option 82
configurations.
(E) > (A) = (B)
C 13
no dhcp relay < vlan-id >
Disables DHCP relay. C 13