Chapter 9 Interfaces
NXC Series User’s Guide
166
Extended
Options
This table is available if you selected DHCP server.
Configure this table if you want to send more information to DHCP clients through DHCP
packets.
Add Click this to create an entry in this table. See Section 9.2.4 on page 157.
Edit Select an entry in this table and click this to modify it.
Remove Select an entry in this table and click this to delete it.
# This field is a sequential value, and it is not associated with any entry.
Name This is the name of the DHCP option.
Code This is the code number of the DHCP option.
Type This is the type of the set value for the DHCP option.
Value This is the value set for the DHCP option.
Enable IP/MAC
Binding
Select this option to have the NXC enforce links between specific IP addresses and specific
MAC addresses for this VLAN. This stops anyone else from manually using a bound IP
address on another device connected to this interface. Use this to make use only the
intended users get to use specific IP addresses.
Enable Logs for
IP/MAC Binding
Violation
Select this option to have the NXC generate a log if a device connected to this VLAN
attempts to use an IP address that is bound to another device’s MAC address.
Static DHCP
Table
Configure a list of static IP addresses the NXC assigns to computers connected to the
interface. Otherwise, the NXC assigns an IP address dynamically using the interface’s IP Pool
Start Address and Pool Size.
Add Click this to create a new entry.
Edit Select an entry and click this to be able to modify it.
Remove Select an entry and click this to delete it.
# This field is a sequential value, and it is not associated with a specific entry.
IP Address Enter the IP address to assign to a device with this entry’s MAC address.
MAC Address Enter the MAC address to which to assign this entry’s IP address.
Description Enter a description to help identify this static DHCP entry. You can use alphanumeric and
()+/:=?!*#@$_%- characters, and it can be up to 60 characters long.
Connectivity Check The NXC can regularly check the connection to the gateway you specified to make sure it
is still available. You specify how often to check the connection, how long to wait for a
response before the attempt is a failure, and how many consecutive failures are required
before the NXC stops routing to the gateway. The NXC resumes routing to the gateway the
first time the gateway passes the connectivity check.
Enable
Connectivity
Check
Select this to turn on the connection check.
Check Method Select the method that the gateway allows.
Select icmp to have the NXC regularly ping the gateway you specify to make sure it is still
available.
Select tcp to have the NXC regularly perform a TCP handshake with the gateway you
specify to make sure it is still available.
Check Period Enter the number of seconds between connection check attempts.
Check Timeout Enter the number of seconds to wait for a response before the attempt is a failure.
Check Fail
Tolerance
Enter the number of consecutive failures before the NXC stops routing through the
gateway.
Check Default
Gateway
Select this to use the default gateway for the connectivity check.
Table 70 Configuration > Network > Interface > VLAN > Add/Edit (continued)
LABEL DESCRIPTION
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