Configuration Guide User guide

956 FastIron Configuration Guide
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Basic IP parameters and defaults – Layer 3 Switches
When parameter changes take effect
Most IP parameters described in this chapter are dynamic. They take effect immediately, as soon
as you enter the CLI command or select the Web Management Interface option. You can verify that
a dynamic change has taken effect by displaying the running-config. To display the running-config,
enter the show running-config or write terminal command at any CLI prompt. (You cannot display
the running-config from the Web Management Interface.)
To save a configuration change permanently so that the change remains in effect following a
system reset or software reload, save the change to the startup-config file:
• To save configuration changes to the startup-config file, enter the write memory command
from the Privileged EXEC level of any configuration level of the CLI.
• To save the configuration changes using the Web Management Interface, select the Save link
at the bottom of the dialog. Select Yes when prompted to save the configuration change to the
startup-config file on the device flash memory. You also can access the dialog for saving
configuration changes by clicking on Command in the tree view, then clicking on Save to Flash.
Changes to memory allocation require you to reload the software after you save the changes to the
startup-config file. When reloading the software is required to complete a configuration change
described in this chapter, the procedure that describes the configuration change includes a step
for reloading the software.
IP global parameters – Layer 3 Switches
Table 164 lists the IP global parameters for Layer 3 Switches.
TABLE 164 IP global parameters – Layer 3 Switches
Parameter Description Default For more
information
IP state The Internet Protocol, version 4 Enabled
NOTE: You cannot
disable IP.
n/a
IP address and
mask notation
Format for displaying an IP address and its network
mask information. You can enable one of the
following:
• Class-based format; example: 192.168.1.1
255.255.255.0
• Classless Interdomain Routing (CIDR) format;
example: 192.168.1.1/24
Class-based
NOTE: Changing this
parameter
affects the
display of IP
addresses, but
you can enter
addresses in
either format
regardless of the
display setting.
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Router ID The value that routers use to identify themselves to
other routers when exchanging route information.
OSPF and BGP4 use router IDs to identify routers.
RIP does not use the router ID.
The IP address
configured on the
lowest-numbered
loopback interface.
If no loopback interface
is configured, then the
lowest-numbered IP
address configured on
the device.
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