Local Management: Overview, Setup, and Navigation
26
Subnet Mask (Modifiable)
This field contains the subnet mask for the selected module. A subnet mask
“masks out” the network bits of the IP address by setting the bits in the mask to 1
when the network treats the corresponding bits in the IP address as part of the
network or subnetwork address, or to 0 if the corresponding bit identifies the
host. The default subnet mask uses the first two portions of the IP address to
identify the network id, leaving the rest of the IP address to identify specific
nodes. To enter a new subnet mask, highlight the field and enter a new value
using dotted decimal notation (4 decimal values between 1 and 255 separated by
periods) as follows:
255.255.255.255
(The Subnet Mask field defaults to the natural mask value, based on the IP
address that was entered for the device.)
Default Gateway (Modifiable)
This field contains the IP address of the device to which all packets addressed to
an unknown network or host are sent. If a Default Gateway is not configured, any
packets that are addressed to an unknown network or host will be dropped. This
field is not defined until a user enters an appropriate value using dotted decimal
notation (4 decimal values between 1 and 255 separated by periods).
Default Interface (Toggle)
This field contains the number that represents the interface that is connected to
the module’s Default Gateway. In some instances, dissimilar modules have
different corresponding interface numbers. For example, if a user is assigning a
default interface to a 9T122-24 module and enters a 3, then the default interface is
the Flexible Network Bus. However, if a user is assigning a default interface to a
9F310-02 module and enters a 3, then the default interface is the Internal Network
Bus. The default is NONE, meaning no default interface selected.
Base MAC Address
This field displays the MAC Address of the selected module. This is the MAC
Address of the SMB-10 interface.
TFTP Gateway IP (Modifiable)
This field displays the IP address of the router that connects to or is closest to the
module. Configure this address when a user is performing TFTP downloads in a
routed environment (if proxy ARP is disabled on the router).
The Default Interface field becomes active after a user enters an IP address in the
Default Gateway field.
NOTE
