Digi IX30

Interfaces Local Area Networks (LANs)
IX30 User Guide
175
By default, DHCP addresses are assigned psuedo-randomly, using a hash of the client's MAC
address to determine the IP address that gets assigned. You can configure the device to use
sequential IP addresses instead:
(config)> network advanced sequential_dhcp_allocation true
(config)>
Because sequential mode does not use a hash based on the client's MACaddress, when DHCP
lease expires, the client is not likely to get the same IP address assigned to it. Therefore,
sentential DHCP address allocation generally should not be used.
8. Optional DHCP server settings:
a. Click to expand Advanced settings.
b. Determine how the DHCP server should broadcast the gateway server:
(config)> network interface my_lan ipv4 dhcp_server advanced gateway
value
(config)>
where value is one of:
n
none: No gateway is broadcast by the DHCP server. Client destinations must be
resolvable without a gateway.
n
auto: Broadcasts the IX30 device's gateway.
n
custom: Allows you to identify the IP address of a custom gateway to be broadcast:
(config)> network interface my_lan ipv4 dhcp_server advanced
gateway_custom ip_address
(config)>
The default is auto.
c. Determine how the DHCP server should broadcast the the MTU:
(config)> network interface my_lan ipv4 dhcp_server advanced mtu value
(config)>
where value is one of:
n
none: An MTU of length 0 is broadcast. This is not recommended.
n
auto: No MTU is broadcast and clients will determine their own MTU.
n
custom: Allows you to identify a custom MTU to be broadcast:
(config)> network interface my_lan ipv4 dhcp_server advanced
mtu_custom mtu
(config)>
The default is auto.
d. Set the domain name that should be appended to host names:
(config)> network interface my_lan ipv4 dhcp_server advanced domain_
suffix name
(config)>