Interfaces Local Area Networks(LANs)
IX20 User Guide
206
address(the final triplet in an IPv4 address, for example, 192.168.2.xxx). The remainder of the
IPaddresswill be based on the LAN's static IPaddressas defined in the Addressfield.
Allowed values are between 1 and 254, and the default is100 for Lease range start and 250
for Lease range end.
n
Sequential DHCPaddressallocation:
By default, DHCPaddressesare assigned psuedo-randomly, using a hash of the client's
MACaddress to determine the IPaddress that getsassigned. You can configure the
device to use sequential IPaddresses instead:
a. Click Network >Advanced.
b. Click to enable Sequential DHCP address allocation.
Because sequential mode doesnot use a hash based on the client's MAC address, when
DHCPlease expires, the client is not likely to get the same IPaddress assigned to it.
Therefore, sentential DHCPaddressallocation generally should not be used.
9. Optional DHCPserver settings:
a. Click to expand Advanced settings.
b. For Gateway, select either:
n
None: No gateway is broadcast by the DHCPserver. Client destinationsmust be
resolvable without a gateway.
n
Automatic: Broadcasts the IX20 device'sgateway.
n
Custom: Allowsyou to identify the IPaddress of a Custom gateway to be
broadcast.
The default is Automatic.
c. For MTU,
n
None: An MTU of length 0 is broadcast. This is not recommended.
n
Automatic: No MTU is broadcast and clientswill determine their own MTU.
n
Custom: Allowsyou to identify a Custom MTU to be broadcast.
The default is Automatic.
d. For Domain name suffix, type the domain name that should be appended to host names.
e. For Primary and Secondary DNS, Primary and Secondary NTP server, and Primary and
Secondary WINS server, select either:
n
None: No server is broadcast.
n
Automatic: Broadcasts the IX20 device'sserver.
n
Custom: Allowsyou to identify the IPaddress of the server.
f. For Bootfile name, type the relative path and file name of the bootfile on the TFTPserver.
g. For TFTP server name, type the IPaddress or host name of the TFTPserver.
10. See Configure DHCPoptionsfor information about Custom DHCP options.
11. See Map static IPaddresses to hosts for information about Static leases.
12. Click Apply to save the configuration and apply the change.
Command line
1. Select the device in Remote Manager and click Actions> Open Console, or log into the IX20
local command line as a user with full Admin access rights.