ZyXEL Communications OLT2406 User Manual page 595

Table 309 DHCP Relay Commands
COMMAND
show dhcp relay <vlan-id>
dhcp relay <vlan-id> helper-
address <remote-dhcp-server1>
[<remote-dhcp-server2>] [<remote-
dhcp-server3>] [option]
[information] [format <num>]
optional commands
no dhcp relay <vlan-id>
Chapter 82 DHCP
DESCRIPTION
Displays DHCP relay settings for the specified
VLAN.
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)
Disables DHCP relay.
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