ZyXEL Communications IES4005M, User Manual

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Chapter 15 DHCP
IES4005M User’s Guide
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The following table describes commonly used parameter notation for these commands.
This table describes the commands.
Table 88
DHCP Command Parameters
NOTATION DESCRIPTION
info
The option 18 circuit ID, option 37 remote ID, or option 82 circuit ID format. It can use
the following components:
special characters except % => ~`!@#$^&*()-=_+{}<>?,./
%%: equals character %
%0x00-%0xFF: represents byte value
%pname: configured port name
%pid: port index
%chvpi: channel VPI
%chvci: channel VCI
%slotid: slot index of the logic port
%svlan: SVLAN ID which DHCP client runs on
%cvlan: CVLAN ID which DHCP client runs on %hname: host device name
%cmac1: MAC address of a DHCP client, in XX:XX:XX:XX:XX:XX format where X=0-F
%cmac2: MAC address of a DHCP client in XXXXXXXXXXXX format where X=0-F
%cmac3: MAC address of a DHCP client in Bytes
%dmac1: MAC address of the host device in XX:XX:XX:XX:XX:XX format where X=0-F
%dmac2: MAC address of the host device in XXXXXXXXXXXX format where X=0-F
%dmac3: MAC address of host device in Bytes
%phtype: ATM: atm Ethernet: eth
%hmodel: model name of the host device
%fwid: host device firmware ID
%blank: blank character
Table 89
DHCP Commands Summary
COMMAND DESCRIPTION M P
dhcp transparent vlan < vid >
Enables transparent DHCP packets to have the IES bypass all
DHCP packets (Discover, Offer, Request, ACK) on the specified
VLAN. The IES does not check and record any information for
DHCP packets.
DHCP transparent and L2 Agent cannot be enabled at the same
time in a VLAN.
C 13
no dhcp transparent vlan < vid >
Disables transparent DHCP packets on the specified VLAN. C 13
dhcp l2agent vlan < vid >
Enables DHCP L2 Agent to have the IES only accept DHCP
requests on the specified VLAN from the downlink network. Other
DHCP packets, such as DHCP Offer, will be dropped. This can help
prevent Denial-Of-Service (DOS) attacks through DHCP.
DHCP transparent and L2 Agent cannot be enabled at the same
time in a VLAN.
C 13