ZyXEL Communications MSC1000G Series, Руководство пользователя

Страница: 648 / 1168

Chapter 19 acl Commands
Management Switch Card User’s Guide
648
info < vid > < string >
Sets information for the option 82 Circuit ID
field.
string
: Add descriptive information to appear
in the option 82 field (<23 characters).
8
relaymode < vid >
[auto|both]
Sets which DHCP relay mode the system uses
for the specified VLAN.
auto
: send the requests to the active DHCP
server first. If the active DHCP server does not
respond, the switch sends the DHCP request to
the backup DHCP server.
both
: send the requests to both the active and
backup DHCP servers.
8
optionmode < vid >
private|tr101
[vid on|off]
Selects the method (Private or TR-101) in which
DHCP relay information is sent and whether or
not the VLAN ID is transmitted within the
packet on the specified VLAN. The vid
on
|
off
option applies to the TR-101 mode only.
8
server active < vid >
<1|2>
Sets the active DHCP server to which the DHCP
requests are sent first.
1:
Sets the first DHCP server as the active
server.
2
: Sets the second DHCP server as the active
server.
8
set < vid >
< serverip1 >
[ serverip2 ]
Sets an entry for forwarding DHCP requests to
the DHCP servers.
serverip1,serverip2
: The IP addresses of the
DHCP servers.
8
delete < vid >
[ serverip ]
Removes an entry for forwarding DHCP
requests to the DHCP server.
serverip
: The IP address of the DHCP server.
8
set < vid >
Creates an option 82 entry for the VLAN. 8
show
Displays DHCP relay and option 82 settings. 1
suboption2 enable < vid >
Turns on option 82 sub-option 2. 8
disable < vid >
Turns off option 82 sub-option 2. 8
set < vid > < info >
Adds the specified information for sub-option 2.
info
: The option 82 information set using the
DHCPrelay82 info
command.
8
dhcpsnoop disable < slot-port >
Deactivates DHCP snooping on the specified
subscriber port(s). 8
enable <
slot-port
>
Activates DHCP snooping on the specified
subscriber port(s).
DHCP snooping allows the system to identify
and block packets from devices using unknown/
static IP addresses.
8
flush < slot-port >
Clears the DHCP snooping table on the specified
port(s). 8
Table 347
acl Commands (continued)
COMMAND DESCRIPTION P