Chapter 8 Interfaces
NXC Series User’s Guide
134
Lease time Specify how long each computer can use the information (especially the IP address)
before it has to request the information again. Choices are:
infinite - select this if IP addresses never expire
days, hours, and minutes - select this to enter how long IP addresses are valid.
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.
Check this
address
Select this to specify a domain name or IP address for the connectivity check. Enter
that domain name or IP address in the field next to it.
Check Port This field only displays when you set the Check Method to tcp. Specify the port
number to use for a TCP connectivity check.
Related Setting
Configure Policy
Route
Click Policy Route to go to the screen where you can manually configure a policy route
to associate traffic with this VLAN.
Table 64 Configuration > Network > Interface > VLAN > Add/Edit (continued)
LABEL DESCRIPTION
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